krita loses the preset information when opening a preset as an image and saving it. Eeeek!
SVN commit 1219280 by berger: Fix: preserve brush presets data when editing a kpp file in Krita CCBUG: 264958 M +16 -0 kis_png_converter.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=1219280
Cyrille wants to fix this in another way; he's going to look into it. For now, loading kpp's as png in krita is safe.
Resolved as later, the current code works, but we want a better fix.