https://bugs.kde.org/show_bug.cgi?id=518193

            Bug ID: 518193
           Summary: Face recognition tags ("Ignored", "Unknown") cannot be
                    filtered out
    Classification: Applications
           Product: digikam
      Version First 9.1.0
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Searches-Advanced
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Created attachment 191047
  --> https://bugs.kde.org/attachment.cgi?id=191047&action=edit
Additional search group added to subtract all People tags

SUMMARY
I am sorting through huge decades long archive of photos, a huge proportion of
which has people in it. Face recognition tool performs miracles on them and
takes reasonable time to scan batch images. Since auto-tagging  is so much
(orders of magnitude) slower I want to use auto-tagging only on images without
people.

I have tried building advanced search --- selecting albums and image type in
one Search Group, turning on and off "Return items without face regions"
option. Search returns images with recognized faces set to "Ignored". When
opening image face square is shown, with "Ignored" marker near it.

I have added second search group --- subtracting  all tags in "People" group
from search results, without success.

STEPS TO REPRODUCE
1. Find album(s) with Face Recognition tags set to "Ignored" state
2. Use advanced search with option "Return items without face regions" turned
on
3. Add additional search group, with "AND" and "None of these conditions are
met" ("Any of" does not make difference) and select all tags in "People"
category, including "Ignored"

OBSERVED RESULT
Query returns photos with people faces set to "Ignored" or "Unknown" states.

EXPECTED RESULT
1. Tags are listed in tag tree, so they should be filtered out (at least with
additional search added).
2. "Return items without face regions" should be renamed to "Return items
without *recognized* face regions" or not return any photos with face markers
at all (getting both options would be perfect :) ). 

SOFTWARE/OS VERSIONS
Digikam --- daily AppImage build  ---
digiKam-9.1.0-20260322T190043-Qt6-x86-64.appimage
DB --- mariaDB, network access


Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Linux Mint 22.3 Zena ,
KDE Plasma Version:  4:5.27.12-0ubuntu0.1
KDE Frameworks Version: 5.115.0-0ubuntu6
Qt Version: 5.15.13+dfsg-1ubuntu1

ADDITIONAL INFORMATION
Got SQL queries from terminal log, see attachment please :) 
And screenshots with exact Search query state are attached too.

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