- If that object is complete (i.e. it is a descendant of a
- local ref), we don't want it, nor its descendants.
- */
- if (has_sha1_file(remote)
- && parse_object(remote)->flags & COMPLETE) {
- if (rev_command_len + 44 < sizeof(rev_command)) {
+ * If that object is complete (i.e. it is an ancestor of a
+ * local ref), we tell them we have it but do not have to
+ * tell them about its ancestors, which they already know
+ * about.
+ *
+ * We use lookup_object here because we are only
+ * interested in the case we *know* the object is
+ * reachable and we have already scanned it.
+ */
+ if (((o = lookup_object(remote)) != NULL) &&
+ (o->flags & COMPLETE)) {
+ struct commit_list *p;
+ struct commit *commit =
+ (struct commit *) (o = deref_tag(o));
+ if (!o)
+ goto repair;
+ if (o->type != commit_type)
+ continue;
+ p = commit->parents;
+ while (p &&
+ rev_command_len + 44 < sizeof(rev_command)) {