Constraint edge ignored when touching external contour
Hi,
I'm using constrained Delaunay triangulation without any added nodes with gmsh 4.8.3-git-d7655482 (cf. #1318 (closed))
The 2D mesh is for visualisation purposes (triangles only, and degenerated ones are not much of a problem).
Discontinuities (lines) are needed.
I use the Crack plugin to duplicate nodes on discontinuties (post-processing the mesh).
Everything works fine except when the constraint edge touches the contour of the domain (red frame in illustration below).
I'm wondering if this could be solved or if the topology that I create is fundamentally wrong and breaking the algorithm assumptions.
Here is the geometry file (I can try and produce a simpler one if needed):