What exactly happens when you "repair hidden items"?

[Maik Qualmann]

Repairing hidden items only dissolves groups if group members have been 
copied/moved across different albums in the meantime. Otherwise, it would be 
almost impossible to find the group leader to display the hidden item.
It also repair broken item versioning that occurred due to code errors in 
older digiKam versions.

Maik

Am Donnerstag, 23. Oktober 2025, 04:47:11 Mitteleuropäische Sommerzeit schrieb 
George Koulomzin:
> I have noticed that "repair hidden items" seems to ungroup members of a
> group if they were hidden.
> 
> Is this a bug, or a feature?
> 
> Also, where does the "hidden-ness" of an image get saved?  What are the
> semantics?  Is it for group member hiding only?  Is it also used in
> versioning?   Anywhere else?
> 
> I have a lot of images which /are not in groups /but don't show when I
> would expect them to show, and re-appear when I "repair hidden images". 
>   I have other images which are in groups and which should be hidden. 
> Running "repair hidden images" fixes the one and breaks the other.
> 
> It's a lot of work to do by hand, and I'm thinking of building some SQL
> to help me.
> 
> Thanks in advance!