Merge branch 'cn/maint-branch-with-bad' into maint

* cn/maint-branch-with-bad: branch: don't assume the merge filter ref exists Conflicts: t/t3200-branch.sh

Junio C Hamano committed Mar 4, 2012 at 22:17 UTC 57f75f31311d380a3ccfbfe7f483253591cf0c87

No changes.