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From:   Junio C Hamano <gitster@pobox.com>
To:     Carlo Marcelo Arenas =?utf-8?Q?Bel=C3=B3n?= <carenas@gmail.com>
Cc:     Jeff King <peff@peff.net>, gitmailinglist.bentolor@xoxy.net,
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Subject: Re: Should `@` be really a valid git tag name?
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Date:   Fri, 17 Sep 2021 16:06:05 -0700
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Carlo Marcelo Arenas Bel=C3=B3n <carenas@gmail.com> writes:

> I was leaning towards something like that plus a Documentation update, =
but
> noticed that the current behaviour was inconsistent, and the confusion
> pointed out by Junio seems to indicate it is better if fully restricted=
.

That is a bad move, as existing repositories may have a ref with
such a name.

If we tighten anything retroactively, we probably should forgid '@'
short-hand that stands for HEAD, I would think.