fix: use content object associations changed event to update collecti…

…ons on restore

openedx/core/djangoapps/content/search/documents.py

@@ -401,8 +401,6 @@ def searchable_doc_for_library_block(xblock_metadata: lib_api.LibraryXBlockMetad
 
     # Add the breadcrumbs. In v2 libraries, the library itself is not a "parent" of the XBlocks so we add it here:
     doc[Fields.breadcrumbs] = [{"display_name": library_name}]
-    # Add collections data to index if this block is part of any collection
-    doc.update(_collections_for_content_object(xblock_metadata.usage_key))
 
     return doc
 

openedx/core/djangoapps/content_libraries/api.py

@@ -1151,6 +1151,14 @@ def restore_library_block(usage_key):
         )
     )
 
+    # Add tags and collections back to index
+    CONTENT_OBJECT_ASSOCIATIONS_CHANGED.send_event(
+        content_object=ContentObjectChangedData(
+            object_id=str(usage_key),
+            changes=["collections", "tags"],
+        ),
+    )
+
     # For each collection, trigger LIBRARY_COLLECTION_UPDATED signal and set background=True to trigger
     # collection indexing asynchronously.
     #