[KPhotoAlbum] Speeding up annotation

[Johannes Zarl-Zierl]

Am Sonntag, 5. Jänner 2020, 20:23:50 CET schrieb Robert Krawitz:
> I found one easy fix in the selection code after the annotations are
> changed.  It's still very slow and may be worse than linear, but at
> least one real problem is cleaned up.

Thank you for your work!

> Given where we are in the release cycle, I want more review before
> pushing it.

I'll take a look at it and come back to you. If you don't hear from me until 
next Sunday, please poke me...

Cheers,
  Johannes