[bug] dual mesh

while helping an user with its mesh https://discourse.salomeplatform.org/t/unexpected-geometry-error-when-using-projection-2d/914/11?u=franco.ota
I have encountered a problem with the creation of a dual mesh. if one downloads the any of the files of in the link of my comment and tries to run the dualization with create dual mesh one get the following error:

issue with the execution of create_dual_mesh:
DataArrayInt::deltaShiftIndex : 2 tuples at least must be present in ‘this’!
e:\s\salome-9.11.0\sources\smesh\src\smesh_i\smesh_gen_i.cxx : 2926

hopes it helps to debug the tool
best regards