libobs: Improve readability of scene duplication type

libobs/obs-scene.c

@@ -1996,8 +1996,8 @@ static inline void duplicate_item_data(struct obs_scene_item *dst, struct obs_sc
 
 obs_scene_t *obs_scene_duplicate(obs_scene_t *scene, const char *name, enum obs_scene_duplicate_type type)
 {
-	bool make_unique = ((int)type & (1 << 0)) != 0;
-	bool make_private = ((int)type & (1 << 1)) != 0;
+	bool make_unique = type == OBS_SCENE_DUP_COPY || type == OBS_SCENE_DUP_PRIVATE_COPY;
+	bool make_private = type == OBS_SCENE_DUP_PRIVATE_REFS || type == OBS_SCENE_DUP_PRIVATE_COPY;
 	obs_scene_item_ptr_array_t items;
 	struct obs_scene *new_scene;
 	struct obs_scene_item *item;