12f4e17044
There have been a number of commits that have introduced regressions
in Sculpt mode where NaN begins to be propagated. While it is visually
very obvious that this is happening, this commit adds an assert so that
any automated testing with asserts on will also catch this issue.
Related to 23951e1b12
Pull Request: https://projects.blender.org/blender/blender/pulls/133992