When processing pictures with faces already defined in XnView (in XMP:mwg-rs : Regions.AppliedToDimensions.xxx and Regions.RegionList[1].Area.yyy) if I search new faces the faces are destroyed :
- in XMP:mwg-rs there is only 3 items of the original 3 + 7n ones (with n the number of faces)
- an new XMP:MP appears with a RegionInfo.Regions[1].PersonDisplayName	and a RegionInfo.Regions[1].Rectangle with 'inf, inf, inf, inf' as value !
- the original IPTC-IIM:Keywords is destroyed and replaced by a new one loosing the original settings (what I want in the keyword !!)
- a lot of 'garbage' (perhaps to make other applications happy) is added : MicrosoftPhoto, acdsee, digiKam, mediapro)

I found the bug after a batch processing of 7963 pictures (by change not all with face recognition).

SUMMARY


STEPS TO REPRODUCE
1.  Detect a face in XnView
2.  Search face in digiKam
3. 

OBSERVED RESULT
The face metadata is corrupted

EXPECTED RESULT
The original face metadata not modified

SOFTWARE/OS VERSIONS
Windows: Windows 11 Professionnel
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION