From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <junkio@cox.net>
Subject: linux-2.6.git/packed-refs???
Date: Tue, 13 Feb 2007 01:27:03 -0800
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I noticed while scanning #git log that it appears that pack-refs
was run in your public repo and some people cannot clone over
dumb protocols with older git.

    commit 2986c02217f98809d8990e7679edf0f5d99f904d
    Author: Junio C Hamano <junkio@cox.net>
    Date:   Wed Nov 22 22:24:09 2006 -0800

    git-fetch: fix dumb protocol transport to fetch from pack-pruned ref

was the first revision that aligned dumb protocol clients with
pack-ref; unfortunately anything older will not find the ref
that was packed.

We do have a backward compatibility warning on this in v1.5.0
release notes draft, but I think we would make it more obvious.

Sigh...