[KPhotoAlbum] Keywords with id=0?

[Johannes Zarl-Zierl]

Am Sonntag, 22. Dezember 2019, 01:50:07 CET schrieb Robert Krawitz:
> On Sun, 22 Dec 2019 01:26:48 +0100, Johannes Zarl-Zierl wrote:
> > Before anyone asks: I'll also add a user-visible notification later on...
> 
> Great.

I've now finally created a message when an id=0 situation was detected and 
could not be repaired automatically (commit 93dd93f1).

I would be pleased to get feedback on this. Especially the wording can 
possibly be improved - I'm not a native speaker, and presenting technical 
information to the unsuspecting user in a way that they can actually act on it 
is never a trivial task.

  Johannes