Blender Git Loki

Fix T75347: Update cloth brushes in versioning with a valid mass value

The file attached in the report has a cloth brush saved with a particle
mass of 0.0, which causes all sort of issues in the solver. I don't know
how that brush was created, but it does not seems to be possible to do
in the current version (reset values are correct, property limits are
correct and a default brush is created in versioning_defaults). This
resets all brushes with an invalid value to 1.0.

Reviewed By: jbakker

Maniphest Tasks: T75347

Differential Revision: https://developer.blender.org/D7698