REF_NEEDS_COMMIT 4215 refs.c         				update->flags |= REF_NEEDS_COMMIT;
REF_NEEDS_COMMIT 4218 refs.c         		if (!(update->flags & REF_NEEDS_COMMIT)) {
REF_NEEDS_COMMIT 4235 refs.c         		if (update->flags & REF_NEEDS_COMMIT) {