message: Fix GetNumGeometries check in FESpace on empty meshes.
diff: @@ -1884,7 +1884,7 @@ void FiniteElementSpace::Construct()
  int dim = mesh->Dimension();
  int order = fec->GetOrder();
  - MFEM_VERIFY(mesh->GetNumGeometries(dim),
  + MFEM_VERIFY((mesh->GetNumGeometries(dim) > 0) || (mesh->GetNE() == 0),
  "Mesh was not correctly finalized.");
  bool mixed_elements = (mesh->GetNumGeometries(dim) > 1);
  