Is anyone else having an issue with changing Krita shortcuts on Windows?

In particular, I started using Krita because it allowed me a slightly better workflow for sketching than say Photoshop. I can choose a pen and an eraser (both with custom sizes) and then fast swap between them with '/' (though it always reverts back on a new doc). The problem is that sometimes I accidentally hit '.' which is right by '/'. Then I have to re setup my fast swap. I've tried to remove '.' with the keyboard-shortcut mapping section but have no luck. I'm hitting ok after choosing custom which automatically defaults to none but it doesn't do anything. Am I doing something wrong?

(I've been having this issue since the pre-alpha days and am now on 3.0 alpha, never tried it on stable)

I fixed that bug since the alpha, will be in the next version

@boudewijn - thank you soooo much. I wasn't sure it was a bug, otherwise I would have mentioned it a while back. Really appreciate your hard work and the rest of the team too. This product is fantastic

I reported this bug yesterday but maybe it is indeed fixed in new release. I will have to test it
Bug report:
https://bugs.kde.org/show_bug.cgi?id=361911

Just to confirm, the bug still occurs for me. Windows 7 64bit build, the new BETA. I just tried to enter the shortcut management section and choose "None" for both the "Next Favorite Preset" and the "Previous Favorite Preset" and the value doesn't stick. I can still cycle through the brushes with ',' or '.'