From: Junio C Hamano <gitster@pobox.com>
Date: Mon, 19 Sep 2016 20:51:40 +0000 (-0700)
Subject: Merge branch 'jc/forbid-symbolic-ref-d-HEAD' into maint
X-Git-Tag: v2.10.1~39
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/d6645312ff82245a8e9bc8187ad16c57456bff38

Merge branch 'jc/forbid-symbolic-ref-d-HEAD' into maint

"git symbolic-ref -d HEAD" happily removes the symbolic ref, but
the resulting repository becomes an invalid one.  Teach the command
to forbid removal of HEAD.

* jc/forbid-symbolic-ref-d-HEAD:
symbolic-ref -d: do not allow removal of HEAD
---

d6645312ff82245a8e9bc8187ad16c57456bff38