Fix #126205: Do not rebuild collection caches on any ID deletion.

Deleting ID would systematically call `BKE_main_collection_sync_remap`,
which would invalidate all collection caches. This should only be needed
when deleting a Scene, Collection or Object ID.

Pull Request: https://projects.blender.org/blender/blender/pulls/127866

source/blender/blenkernel/intern/lib_id_delete.cc

@@ -181,6 +181,8 @@ void BKE_id_free_ex(Main *bmain, void *idv, const int flag_orig, const bool use_
     BKE_layer_collection_resync_forbid();
   }
 
+  const ID_Type id_type = GS(static_cast<ID *>(idv)->name);
+
   int flag_final = id_free(bmain, idv, flag_orig, use_flag_from_idtag);
 
   if (bmain) {
@@ -189,7 +191,9 @@ void BKE_id_free_ex(Main *bmain, void *idv, const int flag_orig, const bool use_
     }
 
     if ((flag_final & LIB_ID_FREE_NO_MAIN) == 0) {
-      BKE_main_collection_sync_remap(bmain);
+      if (ELEM(id_type, ID_SCE, ID_GR, ID_OB)) {
+        BKE_main_collection_sync_remap(bmain);
+      }
     }
   }
 }