message: ParNCMesh::GetConformingSharedStructures relax checks when elements are present
diff: @@ -874,6 +874,8 @@ void ParNCMesh::MakeSharedTable(int ngroups, int ent, Array<int> &shared_local,
  void ParNCMesh::GetConformingSharedStructures(ParMesh &pmesh)
  {
  // make sure we have entity_conf_group[x] and the ordering arrays
  + if (leaf_elements.Size())
  + {
  for (int ent = 0; ent < Dim; ent++)
  {
  GetSharedList(ent);
  @@ -881,6 +883,7 @@ void ParNCMesh::GetConformingSharedStructures(ParMesh &pmesh)
  MFEM_VERIFY(entity_elem_local[ent].Size(), "internal error");
  }
  MFEM_VERIFY(leaf_glob_order.Size(), "internal error");
  + }
  // create ParMesh groups, and the map (ncmesh_group -> pmesh_group)
  Array<int> group_map(groups.size());
  