PackedScene: Fix wrong DEFVAL

scene/resources/packed_scene.cpp

@@ -1775,7 +1775,7 @@ void PackedScene::set_path(const String &p_path, bool p_take_over) {
 void PackedScene::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("pack", "path:Node"), &PackedScene::pack);
-	ClassDB::bind_method(D_METHOD("instance:Node", "edit_state"), &PackedScene::instance, DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("instance:Node", "edit_state"), &PackedScene::instance, DEFVAL(GEN_EDIT_STATE_DISABLED));
 	ClassDB::bind_method(D_METHOD("can_instance"), &PackedScene::can_instance);
 	ClassDB::bind_method(D_METHOD("_set_bundled_scene"), &PackedScene::_set_bundled_scene);
 	ClassDB::bind_method(D_METHOD("_get_bundled_scene"), &PackedScene::_get_bundled_scene);