The bug: Can't add new categories.
Version: 0.9.1-6, Maemo 5
I tried adding new category while the first one, named "img", was selected. It renamed the first one and added a duplicate of it in the end. Now everytime I try adding new category it behaves in this way regardless of any category being selected. Removing any one of the duplicates removes all of them (including feeds that were added to the category before) and it fixes the problem (at the expense of of losing some feeds). Reproduced it two times.

P.S. I can't find a way to rename the category, are there any available?