Fix a bug in Mesh::GeneratePartitioning that was causing an infinite loop in the "empty part fix" loop in some special cases.
Fix a bug in Mesh::GeneratePartitioning that was causing an
infinite loop in the "empty part fix" loop in some special
cases.

mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem