On Fri, 2007-09-07 at 04:21 -0700, Junio C Hamano wrote:

> This patch brings in a new world order by introducing a backward
> incompatible change.  When the string the user gave us does not
> contain any slash, we do not apply the first entry (i.e.
> directly underneath .git/ without any "refs/***") unless the
> name consists solely of uppercase letters or an underscore,
> thereby ignoring .git/master.  The ones we often use, such as
> HEAD and ORIG_HEAD are not affected by this change.

It seems to me that instead of introducing an incompatible (but probably
useful) change, a sensible option would be to have the ambiguous
reference be an error instead of a warning. One shouldn't be encouraged
to use names in .git that conflict with stuff in refs/heads anyway.

-- 
keith.packard@intel.com