Empty physical groups vector when loading from .msh file with physical groups [f90 API]
When loading a file with the fortran f90 API using:
gmsh%open(mshfilename)
It is not possible to get the physical groups from the file model using:
gmsh%Model%GetPhysicalGroups(dimTags,dim,ierr)
The dimTags vector remains empty whatever the value of dim (<0, 1, 2) although the file contains physical groups of dimensions 1 and 2.