Fix: ensure documentDeleted subscription is discarded (#14247)

src-ui/src/app/components/document-list/document-list.component.spec.ts

@@ -146,6 +146,19 @@ describe('DocumentListComponent', () => {
     expect(reloadSpy).toHaveBeenCalled()
   })
 
+  it('should stop reloading on document deleted after destroy', () => {
+    const reloadSpy = jest.spyOn(documentListService, 'reload')
+    const documentDeletedSubject = new Subject<boolean>()
+    jest
+      .spyOn(websocketStatusService, 'onDocumentDeleted')
+      .mockReturnValue(documentDeletedSubject)
+    fixture.detectChanges()
+    fixture.destroy()
+    reloadSpy.mockClear()
+    documentDeletedSubject.next(true)
+    expect(reloadSpy).not.toHaveBeenCalled()
+  })
+
   it('should show score sort fields on fulltext queries', () => {
     documentListService.setFilterRules([
       {

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

@@ -270,9 +270,12 @@ export class DocumentListComponent
         this.list.reload()
       })
 
-    this.websocketStatusService.onDocumentDeleted().subscribe(() => {
-      this.list.reload()
-    })
+    this.websocketStatusService
+      .onDocumentDeleted()
+      .pipe(takeUntil(this.unsubscribeNotifier))
+      .subscribe(() => {
+        this.list.reload()
+      })
 
     this.route.paramMap
       .pipe(