[Gmsh] Problems with 2D mesh

[Alessandro Vicini]

With the attached geo file (TestCase) I have a problem in the 2D mesh of some of the internal faces (see attached picture) if I set Mesh.CharacteristicLengthExtendFromBoundary = 0 (which is what I would like to do), regardless of the meshing algorithm. The mesh is ok when 
Mesh.CharacteristicLengthExtendFromBoundary = 1. I'm using v4.0.1. Is there a way to solve this? Thank you.

A.V.
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