Actually just try z-index

src-ui/messages.xlf

@@ -5973,7 +5973,7 @@
         <source>Open <x id="PH" equiv-text="this.title"/> filter</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/common/filterable-dropdown/filterable-dropdown.component.ts</context>
-          <context context-type="linenumber">828</context>
+          <context context-type="linenumber">831</context>
         </context-group>
       </trans-unit>
       <trans-unit id="7005745151564974365" datatype="html">
@@ -6382,27 +6382,6 @@
           <context context-type="linenumber">94</context>
         </context-group>
       </trans-unit>
-      <trans-unit id="5947558132119506443" datatype="html">
-        <source>My documents</source>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.html</context>
-          <context context-type="linenumber">25,26</context>
-        </context-group>
-      </trans-unit>
-      <trans-unit id="231920238966427751" datatype="html">
-        <source>Shared with me</source>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.html</context>
-          <context context-type="linenumber">35,36</context>
-        </context-group>
-      </trans-unit>
-      <trans-unit id="175385209536581523" datatype="html">
-        <source>Shared by me</source>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.html</context>
-          <context context-type="linenumber">45,46</context>
-        </context-group>
-      </trans-unit>
       <trans-unit id="5151074932731293042" datatype="html">
         <source>Unowned</source>
         <context-group purpose="location">
@@ -6417,6 +6396,76 @@
           <context context-type="linenumber">85</context>
         </context-group>
       </trans-unit>
+      <trans-unit id="5947558132119506443" datatype="html">
+        <source>My documents</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">101</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="1930869169119109336" datatype="html">
+        <source>Owned by <x id="PH" equiv-text="username"/></source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">106</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="5339682692608120628" datatype="html">
+        <source>Owned by another user</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">107</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="231920238966427751" datatype="html">
+        <source>Shared with me</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">117</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="1894556100995563325" datatype="html">
+        <source>Not owned by <x id="PH" equiv-text="usernames.join(&apos;, &apos;)"/></source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">124</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="4647949080250052038" datatype="html">
+        <source>Not owned by another user</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">127</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="8858352775080403297" datatype="html">
+        <source>Not owned by selected users</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">128</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="175385209536581523" datatype="html">
+        <source>Shared by me</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">136</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="5140574576358170412" datatype="html">
+        <source>Shared by <x id="PH" equiv-text="username"/></source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">141</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="391557549689505150" datatype="html">
+        <source>Shared by another user</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts</context>
+          <context context-type="linenumber">142</context>
+        </context-group>
+      </trans-unit>
       <trans-unit id="941924371433275463" datatype="html">
         <source>Global permissions define what areas of the app and API endpoints users can access.</source>
         <context-group purpose="location">

src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.html

@@ -49,7 +49,7 @@
         </cdk-virtual-scroll-viewport>
       }
       @if (editing) {
-        @if (filteredItems.length === 0 && createRef !== undefined) {
+        @if (filteredItems.length === 0 && createRef !== undefined && filterText?.length > 0) {
           <button class="list-group-item list-group-item-action bg-light" (click)="createClicked()" [disabled]="disabled">
             <small class="ms-2"><ng-container i18n>Create</ng-container> "{{filterText}}"</small>
             <i-bs width="1.5em" height="1em" name="plus"></i-bs>
@@ -62,7 +62,7 @@
           </button>
         }
       }
-      @if (extraButtonTitle) {
+      @if (extraButtonTitle && (showExtraButtonIfEmpty || filteredItems?.length > 0)) {
         <button class="list-group-item list-group-item-action bg-light d-flex align-items-center" (click)="extraButtonClicked($event)" [disabled]="disabled">
           <small class="ms-2 fw-bold">{{extraButtonTitle}}</small>
           <i-bs width="1.5em" height="1em" name="arrow-right"></i-bs>

src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.spec.ts

@@ -911,6 +911,25 @@ describe('FilterableDropdownComponent & FilterableDropdownSelectionModel', () =>
     expect(createSpy).toHaveBeenCalled()
   })
 
+  it('should only show create when a non-empty filter has no matches', () => {
+    component.selectionModel.items = []
+    component.icon = 'tag-fill'
+    component.editing = true
+    component.createRef = jest.fn()
+
+    fixture.detectChanges()
+    expect(fixture.nativeElement.textContent).not.toContain('Create')
+    component.listFilterEnter()
+    expect(component.createRef).not.toHaveBeenCalled()
+
+    const filterInput: HTMLInputElement =
+      fixture.nativeElement.querySelector('input[type="text"]')
+    filterInput.value = 'FooBar'
+    filterInput.dispatchEvent(new Event('input'))
+    fixture.detectChanges()
+    expect(fixture.nativeElement.textContent).toContain('Create "FooBar"')
+  })
+
   it('should exclude item and trigger change event', () => {
     const id = 1
     const state = ToggleableItemState.Selected
@@ -970,4 +989,18 @@ describe('FilterableDropdownComponent & FilterableDropdownSelectionModel', () =>
     expect(extraButtonClicked).toBeTruthy()
     expect(applied).toBeFalsy()
   })
+
+  it('should only show the extra button for an empty result when enabled', () => {
+    component.selectionModel.items = items
+    component.icon = 'tag-fill'
+    component.extraButtonTitle = 'Extra'
+    component.filterText = 'FooBar'
+
+    fixture.detectChanges()
+    expect(fixture.nativeElement.textContent).not.toContain('Extra')
+
+    fixture.componentRef.setInput('showExtraButtonIfEmpty', true)
+    fixture.detectChanges()
+    expect(fixture.nativeElement.textContent).toContain('Extra')
+  })
 })

src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.ts

@@ -774,6 +774,9 @@ export class FilterableDropdownComponent
   @Input()
   extraButtonTitle: string
 
+  @Input()
+  showExtraButtonIfEmpty: boolean = false
+
   creating: boolean = false
 
   @Output()
@@ -892,7 +895,11 @@ export class FilterableDropdownComponent
           this.dropdown.close()
         }
       }, 200)
-    } else if (filtered.length == 0 && this.createRef) {
+    } else if (
+      filtered.length == 0 &&
+      this.createRef &&
+      this.filterText?.length > 0
+    ) {
       this.createClicked()
     }
   }

src-ui/src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.html

@@ -22,7 +22,7 @@
           }
         </div>
         <div class="me-1">
-          <small i18n>My documents</small>
+          <small>{{ownerFilterLabel}}</small>
         </div>
       </button>
       <button class="list-group-item list-group-item-action d-flex align-items-center p-2 border-top-0 border-start-0 border-end-0 border-bottom" role="menuitem" (click)="setFilter(OwnerFilterType.NOT_SELF)" [disabled]="disabled">
@@ -32,7 +32,7 @@
           }
         </div>
         <div class="me-1">
-          <small i18n>Shared with me</small>
+          <small>{{ownerExclusionFilterLabel}}</small>
         </div>
       </button>
       <button class="list-group-item list-group-item-action d-flex align-items-center p-2 border-top-0 border-start-0 border-end-0 border-bottom" role="menuitem" (click)="setFilter(OwnerFilterType.SHARED_BY_ME)" [disabled]="disabled">
@@ -42,7 +42,7 @@
           }
         </div>
         <div class="me-1">
-          <small i18n>Shared by me</small>
+          <small>{{sharedByFilterLabel}}</small>
         </div>
       </button>
       <button class="list-group-item list-group-item-action d-flex align-items-center p-2 border-top-0 border-start-0 border-end-0 border-bottom" role="menuitem" (click)="setFilter(OwnerFilterType.UNOWNED)" [disabled]="disabled">

src-ui/src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.spec.ts

@@ -94,6 +94,58 @@ describe('PermissionsFilterDropdownComponent', () => {
     expect(component.isActive).toBeTruthy()
   })
 
+  it('should describe concrete user filters honestly', () => {
+    component.selectionModel.ownerFilter = OwnerFilterType.SELF
+    component.selectionModel.userID = 1
+    expect(component.ownerFilterLabel).toEqual('Owned by user1')
+
+    component.selectionModel.ownerFilter = OwnerFilterType.NOT_SELF
+    component.selectionModel.excludeUsers = [1]
+    expect(component.ownerExclusionFilterLabel).toEqual('Not owned by user1')
+
+    component.selectionModel.ownerFilter = OwnerFilterType.SHARED_BY_ME
+    component.selectionModel.userID = 1
+    expect(component.sharedByFilterLabel).toEqual('Shared by user1')
+  })
+
+  it('should describe concrete filters when usernames are unavailable', () => {
+    component.selectionModel.ownerFilter = OwnerFilterType.SELF
+    component.selectionModel.userID = 99
+    expect(component.ownerFilterLabel).toEqual('Owned by another user')
+
+    component.selectionModel.ownerFilter = OwnerFilterType.NOT_SELF
+    component.selectionModel.excludeUsers = [99]
+    expect(component.ownerExclusionFilterLabel).toEqual(
+      'Not owned by another user'
+    )
+
+    component.selectionModel.excludeUsers = [98, 99]
+    expect(component.ownerExclusionFilterLabel).toEqual(
+      'Not owned by selected users'
+    )
+
+    component.selectionModel.ownerFilter = OwnerFilterType.SHARED_BY_ME
+    component.selectionModel.userID = 99
+    expect(component.sharedByFilterLabel).toEqual('Shared by another user')
+  })
+
+  it('should retain relative labels for filters bound to the current user', () => {
+    component.selectionModel.userID = currentUserID
+    expect(component.ownerFilterLabel).toEqual('My documents')
+    expect(component.sharedByFilterLabel).toEqual('Shared by me')
+
+    component.selectionModel.excludeUsers = [currentUserID]
+    expect(component.ownerExclusionFilterLabel).toEqual('Shared with me')
+  })
+
+  it('should retain relative labels for inactive filter choices', () => {
+    component.selectionModel.ownerFilter = OwnerFilterType.NONE
+
+    expect(component.ownerFilterLabel).toEqual('My documents')
+    expect(component.ownerExclusionFilterLabel).toEqual('Shared with me')
+    expect(component.sharedByFilterLabel).toEqual('Shared by me')
+  })
+
   it('should support reset', () => {
     component.setFilter(OwnerFilterType.OTHERS)
     expect(component.selectionModel.ownerFilter).not.toEqual(

src-ui/src/app/components/common/permissions-filter-dropdown/permissions-filter-dropdown.component.ts

@@ -93,6 +93,55 @@ export class PermissionsFilterDropdownComponent extends ComponentWithPermissions
     )
   }
 
+  get ownerFilterLabel(): string {
+    if (
+      this.selectionModel?.ownerFilter !== OwnerFilterType.SELF ||
+      this.selectionModel?.userID === this.settingsService.currentUser()?.id
+    ) {
+      return $localize`My documents`
+    }
+
+    const username = this.getUsername(this.selectionModel?.userID)
+    return username
+      ? $localize`Owned by ${username}`
+      : $localize`Owned by another user`
+  }
+
+  get ownerExclusionFilterLabel(): string {
+    const excludedUsers = this.selectionModel?.excludeUsers ?? []
+    if (
+      this.selectionModel?.ownerFilter !== OwnerFilterType.NOT_SELF ||
+      (excludedUsers.length === 1 &&
+        excludedUsers[0] === this.settingsService.currentUser()?.id)
+    ) {
+      return $localize`Shared with me`
+    }
+
+    const usernames = excludedUsers
+      .map((id) => this.getUsername(id))
+      .filter(Boolean)
+    if (usernames.length === excludedUsers.length && usernames.length > 0) {
+      return $localize`Not owned by ${usernames.join(', ')}`
+    }
+    return excludedUsers.length === 1
+      ? $localize`Not owned by another user`
+      : $localize`Not owned by selected users`
+  }
+
+  get sharedByFilterLabel(): string {
+    if (
+      this.selectionModel?.ownerFilter !== OwnerFilterType.SHARED_BY_ME ||
+      this.selectionModel?.userID === this.settingsService.currentUser()?.id
+    ) {
+      return $localize`Shared by me`
+    }
+
+    const username = this.getUsername(this.selectionModel?.userID)
+    return username
+      ? $localize`Shared by ${username}`
+      : $localize`Shared by another user`
+  }
+
   constructor() {
     const userService = inject(UserService)
 
@@ -164,4 +213,8 @@ export class PermissionsFilterDropdownComponent extends ComponentWithPermissions
     }
     this.onChange()
   }
+
+  private getUsername(userID: number): string {
+    return this.users().find((user) => user.id === userID)?.username
+  }
 }

src-ui/src/app/components/document-list/document-list.component.scss

@@ -64,6 +64,13 @@ $paperless-card-breakpoints: (
   }
 }
 
+// Popper may place a dropdown above its toggle when the virtual keyboard
+// reduces the available viewport. Raise the toolbar while a menu is open so
+// the menu isn't obscured by the fixed navbar.
+:host ::ng-deep .sticky-top:has(.dropdown-menu.show) {
+  z-index: 1040;
+}
+
 @media (max-width: 579.98px) {
   :host-context(main.mobile-search-hidden) .sticky-top {
     top: calc(3.5rem - 2px); // height of navbar only when search is hidden

src-ui/src/app/utils/popper-options.ts

@@ -9,5 +9,6 @@ export function pngxPopperOptions(config: Partial<Options>): Partial<Options> {
       padding: 10,
     }
   }
+
   return config
 }

src/documents/search/_backend.py

@@ -223,7 +223,27 @@ class WriteBatch:
                     )
                     time.sleep(sleep_s)
 
-        self._raw_writer = self._backend._index.writer()
+            # Open a fresh Index (and thus a fresh Tantivy ManagedDirectory)
+            # for the write, rather than reusing the process-local cached
+            # index. ManagedDirectory loads its GC bookkeeping (.managed.json)
+            # once, at construction, and never re-reads it; paperless runs
+            # several long-lived processes (Granian workers, Celery workers)
+            # that take turns writing under the file lock above. A cached,
+            # long-lived writer index would carry a stale managed-files view
+            # and, on commit, overwrite .managed.json with that stale view -
+            # permanently losing track of segment files other processes
+            # registered in the meantime, so they can never be garbage
+            # collected. Reopening fresh here always picks up the current
+            # on-disk state. The long-lived self._backend._index is used for
+            # reads only and is reloaded (not reopened) after commit below.
+            write_index = tantivy.Index(
+                build_schema(),
+                path=str(self._backend._path),
+            )
+            register_tokenizers(write_index, settings.SEARCH_LANGUAGE)
+            self._raw_writer = write_index.writer()
+        else:
+            self._raw_writer = self._backend._index.writer()
         return self
 
     def __exit__(self, exc_type, exc_val, exc_tb):

src/documents/tests/search/test_backend.py

@@ -1,3 +1,6 @@
+import json
+from pathlib import Path
+
 import pytest
 from django.contrib.auth.models import Group
 from django.contrib.auth.models import User
@@ -21,6 +24,17 @@ from documents.tests.factories import UserFactory
 
 pytestmark = [pytest.mark.search, pytest.mark.django_db]
 
+# Extensions of actual Tantivy segment data files, as opposed to its own
+# bookkeeping files (meta.json, .managed.json, lock files).
+_SEGMENT_FILE_EXTENSIONS = (
+    ".fast",
+    ".fieldnorm",
+    ".idx",
+    ".pos",
+    ".store",
+    ".term",
+)
+
 
 class TestWriteBatch:
     """Test WriteBatch context manager functionality."""
@@ -1014,3 +1028,63 @@ class TestHighlightHits:
         hits = backend.highlight_hits("quick", [doc.pk])
 
         assert len(hits) == 0
+
+
+class TestIndexDirectoryGarbageCollection:
+    """Regression tests for Tantivy segment files leaking on disk when
+    multiple long-lived worker processes (Granian/Celery) take turns writing
+    to the same on-disk index (issue #13679)."""
+
+    def test_no_permanently_orphaned_segment_files_across_worker_processes(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """Simulate two long-lived worker processes, each with its own
+        process-local ``TantivyBackend``/``Index`` opened once at process
+        start, alternating turns as the writer -- exactly how paperless runs
+        in production (several Granian + Celery worker processes).
+
+        Every segment file physically present on disk must still be tracked
+        in Tantivy's ``.managed.json`` bookkeeping; otherwise it can never be
+        garbage collected by anyone again and the index directory grows
+        without bound.
+        """
+        index_dir = tmp_path / "index"
+        index_dir.mkdir()
+
+        worker_a = TantivyBackend(path=index_dir)
+        worker_a.open()
+        worker_b = TantivyBackend(path=index_dir)
+        worker_b.open()
+        workers = [worker_a, worker_b]
+
+        docs = [
+            DocumentFactory.create(checksum=f"GC{i}", title=f"gc doc {i}")
+            for i in range(5)
+        ]
+
+        try:
+            # Alternate writers across many commits, repeatedly upserting the
+            # same documents so segments accumulate and get superseded,
+            # forcing the delete+add upsert pattern and eventual merges.
+            for i in range(30):
+                worker = workers[i % len(workers)]
+                doc = docs[i % len(docs)]
+                worker.add_or_update(doc)
+        finally:
+            worker_a.close()
+            worker_b.close()
+
+        managed_path = index_dir / ".managed.json"
+        managed = set(json.loads(managed_path.read_text()))
+        on_disk = {
+            p.name
+            for p in index_dir.iterdir()
+            if p.is_file() and p.suffix in _SEGMENT_FILE_EXTENSIONS
+        }
+        orphans = on_disk - managed
+
+        assert not orphans, (
+            "Segment files present on disk but absent from Tantivy's "
+            f".managed.json bookkeeping (permanently un-collectible): {orphans}"
+        )