[ENG-1546] Delete tag_on_object entries before the tag itself (so tags can be deleted) (#1944)

fix: delete `tag_on_object` entries before the tag itself

core/src/api/tags.rs

@@ -358,6 +358,13 @@ pub(crate) fn mount() -> AlphaRouter<Ctx> {
 			"delete",
 			R.with2(library())
 				.mutation(|(_, library), tag_id: i32| async move {
+					library
+						.db
+						.tag_on_object()
+						.delete_many(vec![tag_on_object::tag_id::equals(tag_id)])
+						.exec()
+						.await?;
+
 					library
 						.db
 						.tag()