Version:           2.0.0 (using KDE 4.7.0) 
OS:                Linux

Sometimes my thumbnails start to flicker madly. Only way to stop them doing that is to restart digiKam. One example of something that can trigger thumbnail flicker is renaming a dir with many images in it. During renaming, they start to flicker.

I can provide a screencast if this is not a known issue.

I think this flickering (the triggering of a directory monitoring procedure?) might be what makes digiKam so slow at renaming many files. Instead of just renaming them all (~700 files) in a second (as a bash script would take: for f in *.jpg; do mv "$f" "renamed_$f"; done), and then updating the thumbnails, it's taken already a few minutes and it's at 58% as I write.

Reproducible: Always

Steps to Reproduce:
Rename many files.


Expected Results:  
No flicker of thumbnails. Renaming should be very fast.