Junio C Hamano <gitster@pobox.com> writes:

> You'd want something like this squashed into an appropriate step to
> avoid breaking "make sparse".
>
> diff --git a/builtin/update-ref.c b/builtin/update-ref.c
> index 175579148f..1cdafc33f3 100644
> --- a/builtin/update-ref.c
> +++ b/builtin/update-ref.c
> @@ -228,7 +228,7 @@ static void parse_cmd_update(struct ref_transaction *transaction,
>  	have_old = !parse_next_arg(&next, end, &old_oid,
>  				   &old_target, "update", refname,
>  				   PARSE_SHA1_OLD | PARSE_REFNAME_TARGETS);
> -	have_old = have_old & !old_target.len;
> +	have_old = have_old && !old_target.len;
>
>  	if (*next != line_termination)
>  		die("update %s: extra input: %s", refname, next);

Thanks, will check and squash this in.