2a52ca42bd
Reason for this is that all the brushes in essentials assets have a zero
default `mask_stencil_pos` / `mask_stencil_dimension`.
At that time, they have been created resetting a brush to defaults and
using that as a starting point.
At that time though, these settings didnt have a default (which
b2dd308dca fixed, so that method should not result in those settings
being zero).
The brushes in essentials assets still do though, now correct these in
versioning code.
Pull Request: https://projects.blender.org/blender/blender/pulls/133374