Re: [PATCH] for-each-ref: `:short` format for `refname`

> "Bert Wesarg" <bert.wesarg@googlemail.com> writes:
>
>> On Mon, Sep 1, 2008 at 21:10, Shawn O. Pearce <spearce@spearce.org> wrote:
>> ...
>>> You can still get ambiguous names.  Avoiding them requires going
>>> through all refs and building their short forms, then using the
>>> full ref name for any ref which had more than one name shorten to
>>> the same string.  Ugly, but implementable, and probably something
>>> that should be considered.
>>
>> What about: try the list backwards until the first match, than try the
>> matched part (this what %.*s matched) with the forward list, if both
>> give the same pattern, its not disambiguous. If not try the next
>> pattern backwards.
>
> How does it catch the case where you have both 'xyzzy' branch and 'xyzzy'
> tag, which is the point of disambiguation issue Shawn raised?