Function ref_update_expects_existing_old_ref

refs.c:3523–3530

}

int ref_update_expects_existing_old_ref(struct ref_update *update)
{
	if (update->flags & REF_LOG_ONLY)
		return 0;

	return (update->flags & REF_HAVE_OLD) &&
		(!is_null_oid(&update->old_oid) || update->old_target);
}

const char *ref_transaction_error_msg(enum ref_transaction_error err)
{