Documentation: correct duplicates info (#14243)

docs/faq.md

@@ -76,7 +76,9 @@ is not supported by any of the available parsers.
 
 **A:** Not by default. As of v3, a file whose contents match an existing document is still
 consumed, and the duplicate is flagged in the UI — open the document and check the
-**Duplicates** tab to review documents that share the same content. If you prefer the old
+**Duplicates** tab to review documents that share the same content, or filter the document
+list by **Duplicates** to find all of them (see
+[Duplicate documents](usage.md#duplicate-documents)). If you prefer the old
 behavior of rejecting duplicates during consumption, set
 [`PAPERLESS_CONSUMER_DELETE_DUPLICATES`](configuration.md#PAPERLESS_CONSUMER_DELETE_DUPLICATES)
 to `true`.

docs/usage.md

@@ -299,19 +299,18 @@ for details.
 ### Duplicate documents
 
 By default, Paperless-ngx **does not reject duplicates**. If you consume a file whose
-contents exactly match an existing document (same checksum), the new copy is still
+contents match an existing document (same original or archive checksum), the new copy is
-consumed and a warning is logged. The task entry for the upload also flags that a
+still consumed and a warning is logged.
-duplicate was detected and links to the existing document(s).
 
-To review duplicates, open a document and switch to the **Duplicates** tab on the
+When a document has duplicates, a **Duplicates** tab appears on its detail page, listing
-document detail page. It lists other documents that share the same content, including any
+the other documents you can view that share the same content (including any in the trash).
-that are in the trash (shown with a badge), and links to each so you can decide which to
+To find all documents with duplicates, choose **Duplicates** in the document list's text
-keep.
+filter dropdown, or use `has_duplicates=true` in the REST API.
 
 If you would rather reject duplicates at consumption time (the pre-v3 behavior), set
 [`PAPERLESS_CONSUMER_DELETE_DUPLICATES`](configuration.md#PAPERLESS_CONSUMER_DELETE_DUPLICATES)
 to `true`. The duplicate file is then deleted instead of consumed, and the task fails with
-a "document already exists" message.
+a "Document already exists" message linking to the existing document.
 
 ## Document Suggestions