message: Allow rvalues in apply_objects of save inspectors
diff: @@ -52,7 +52,7 @@ public:
  }
  template <class... Ts>
  - [[nodiscard]] bool apply_objects(Ts&... xs) {
  + [[nodiscard]] bool apply_objects(Ts&&... xs) {
  return (apply_object(xs) && ...);
  }
  