commit_graft_prepared = 1;
 }
 
-static struct commit_graft *lookup_commit_graft(const unsigned char *sha1)
+struct commit_graft *lookup_commit_graft(const unsigned char *sha1)
 {
        int pos;
        prepare_commit_graft();
        }
        item->date = parse_commit_date(bufptr, tail);
 
-       if (track_object_refs) {
-               unsigned i = 0;
-               struct commit_list *p;
-               struct object_refs *refs = alloc_object_refs(n_refs);
-               if (item->tree)
-                       refs->ref[i++] = &item->tree->object;
-               for (p = item->parents; p; p = p->next)
-                       refs->ref[i++] = &p->item->object;
-               set_object_refs(&item->object, refs);
-       }
-
        return 0;
 }