message: Fixed FiniteElementSpace::GetFaceOrder for constant-order spaces.
diff: @@ -2191,7 +2191,12 @@ int FiniteElementSpace::GetEdgeOrder(int edge, int variant) const
  int FiniteElementSpace::GetFaceOrder(int face, int variant) const
  {
  - if (!IsVariableOrder()) { return fec->GetOrder(); }
  + if (!IsVariableOrder())
  + {
  + // face order can be different from fec->GetOrder()
  + Geometry::Type geom = mesh->GetFaceGeometry(face);
  + return fec->FiniteElementForGeometry(geom)->GetOrder();
  + }
  const int* beg = var_face_dofs.GetRow(face);
  const int* end = var_face_dofs.GetRow(face + 1);
  