Regression in 'git branch -m'?

From: Andreas Krey <a.krey@gmx.de>
Date: Oct 5, 2017, 17:25 UTC
Message-ID: <20171005172552.GA11497@inner.h.apk.li>

Hi everybody,

I got something that looks like a regression somewhere since 2.11. This script

  set -xe
  rm -rf repo
  git init repo
  cd repo
  git commit -m nix --allow-empty
  git branch -m master/master
  git rev-parse HEAD
  git branch
  git status

causes .git/HEAD to still contain 'ref: refs/heads/master' and to fail in the rev-parse step with

  + git rev-parse HEAD
  HEAD
  fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.
  Use '--' to separate paths from revisions, like this:
  'git <command> [<revision>...] -- [<file>...]'

This is with 2.15.0.rc0; with 2.11.0 (and 2.11.0.356.gffac48d09) it still works.

I'm going to do a bisect on this as battery permits.

- Andreas

-- 
"Totally trivial. Famous last words."
From: Linus Torvalds <torvalds@*.org>
Date: Fri, 22 Jan 2010 07:29:21 -0800