From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <junkio@cox.net>
Subject: Re: [PATCH] We do not like "HEAD" as a new branch name
Date: Thu, 15 Dec 2005 11:34:31 -0800
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To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

> +		/* do not allow "HEAD" as ref name */
> +		if (ch == 'H' && (!strcmp(cp, "EAD") ||
> +					!strncmp(cp, "EAD/", 4)))

Why forbid HEAD in the middle, like "refs/heads/HEAD/frotz"?
Confusion avoidance?

We might want to forbid anything that matches /^.*_?HEAD$/ to catch
ORIG_HEAD for example, though.