- Constrained edges along a boundary are allowed to collapse, and vertices are allowed to move, but they are projected back to the original boundary curve geometry
- Additionally, vertices at boundary "corners" (defined using an angle threshold criterion) are constrained to not move or be deleted
#jira UE-149616
#rb rinat.abdrashitov
#preflight
#preflight 6262dc97e87284a93cd6bd44
[CL 19867177 by tyson brochu in ue5-main branch]