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();
        unsigned char parent[20];
        struct commit_list **pptr;
        struct commit_graft *graft;
-       unsigned n_refs = 0;
 
        if (item->object.parsed)
                return 0;
                return error("bad tree pointer in commit %s",
                             sha1_to_hex(item->object.sha1));
        item->tree = lookup_tree(parent);
-       if (item->tree)
-               n_refs++;
        bufptr += 46; /* "tree " + "hex sha1" + "\n" */
        pptr = &item->parents;
 
                if (graft)
                        continue;
                new_parent = lookup_commit(parent);
-               if (new_parent) {
+               if (new_parent)
                        pptr = &commit_list_insert(new_parent, pptr)->next;
-                       n_refs++;
-               }
        }
        if (graft) {
                int i;
                        if (!new_parent)
                                continue;
                        pptr = &commit_list_insert(new_parent, pptr)->next;
-                       n_refs++;
                }
        }
        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;
 }