Operating system: linux, MacOs
Graphics card: n/a
As reported in this devtalk thread: https://devtalk.blender.org/t/delaunay-2d-cdt-robustness/10968
some uses of the new library routine BLI_delaunay_cdt_calc cause crashes.
Exact steps for others to reproduce the error
The thread has 5 scripts to run, each of which causes a crash.
Two of the bigger ones I have turned into a file that the delaunay unit test program knows how to read:
The rest are more easily turned directly into unit tests.