search in XMP metadatas : case of the city

[fleuvesauvage]

Hello,
I have the 1.9.5 release on Win11.

I try to write some metadatas in my pictures.
I use the edit XMP panel and the IPTC extensions tab.
I put some text in "city" and "event" items. I see the data in the XMP tab in the informations panel.
With the search tool, I can find the pictures with an event. I use the event field in the search list of XMP fields.
But I can’t find easily the pictures with a city.
The search list of XMP fields shows two "city". The two possibilities don’t work.
The first one seems to search the "Origine>city" (tag photoshop>City). It’s not "my" city.
The second one seems to search nowhere. Maybe, it should search my city, the "IPTC Extensions > City" (tag iptc4xmpExt>City), but it doesn’t work.
I can find when I use a search condition with XMP:fields and add "city" in the field name.
Do I something wrong and this behaviour is normal? Or is there a problem?