Blender Git Loki

Radial control: Skip operator properties from being saved

This solves issue with tweaking brush size when interleaving particle edit
and texture paint modes. The issue was caused by texture paing setting more
operator properties then it's done for particle edit mode, which made window
manager to use saved proeprties for the "missing" ones.

Don't see any reason why we would want to save any of those properties.

This is a regression since rB83b60dac57a1.