[Feature Request] Automatically tag duplicate documents / duplicates

Description

I actually think the new option of importing duplicates anyway is a good one. It keeps files from lingering in the transfer directory. But if I classify the imported documents and happen to overlook the little "1" in the detail view, it’s too late, and the file will likely remain duplicated in the database for quite a while.

I haven’t found a way to search for or filter such files specifically.

Either there is a built-in option whereby files identified as duplicates are automatically assigned a fixed tag. Just as one can be assigned during import.

Or maybe Trigger in Workflows: "Document added + Document is a duplicate" then "add Tag xyz"



Other

It's an alternative to ##13579 and #13619