message: AlgebraicCoarseSpace: const methods return const objects
diff: @@ -33,8 +33,8 @@ public:
  AlgebraicCoarseSpace(FiniteElementSpace &fine_fes, CeedElemRestriction fine_er,
  int order, int dim, int order_reduction_);
  int GetOrderReduction() const { return order_reduction; }
  - CeedElemRestriction GetCeedElemRestriction() const { return ceed_elem_restriction; }
  - CeedBasis GetCeedCoarseToFine() const { return coarse_to_fine; }
  + const CeedElemRestriction GetCeedElemRestriction() const { return ceed_elem_restriction; }
  + const CeedBasis GetCeedCoarseToFine() const { return coarse_to_fine; }
  virtual const Operator *GetProlongationMatrix() const override { return NULL; }
  virtual const SparseMatrix *GetRestrictionMatrix() const override { return NULL; }
  ~AlgebraicCoarseSpace();
  