[Gmsh] Cannot mesh the extrusion of a closed spline

[Mengda Wu]

Hi all,

   I am trying to mesh the extrusion of a closed spline (attached). Only the
mesh of the lateral surface is needed, i.e. without the caps.
But gmsh crashes right away I hit the mesh button. Similar crash occurs with
a closed bspline.

  BTW, the meshing is successful if the closed line is composed of a spline
and a line or two splines. Can you help me on this issue?
I tested this using the stable version 2.3.1 on both Windows and Linux.

Thanks,
Mengda
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