Fixes behavior of the outline modifier in some edge case:
- When the outline radius gets larger than the input stroke radius it
caused a negative offset, inverting the outline in thin areas like the
tips of the default stroke. The offset should always remain positive
or zero (collapses onto the input curve).
- When the outline collapses the modifier was skipping points on outside
corners, where at least one point should be added in all cases.
Pull Request: https://projects.blender.org/blender/blender/pulls/119084
01f794a7d5