BUG Report: git branch ignore --no-abbrev flag

From: Guillaume Wenzek <guillaume.wenzek@gmail.com>
Date: Mar 8, 2017, 18:14 UTC
Message-ID: <CAAvNd=ir1qNQVaKphdg51AfGnsNgTrfvW2L6cca3SHiZrWNgHA@mail.gmail.com>

Hi, After updating to git 2.12.0 on Monday I noticed that the "git branch" wasn't behaving as usual. As of today `git branch -vv --no-abbrev` outputs short hashes instead of long one (as requested by --no-abbrev)[1]

git branch -vv --no-abbrev
* (HEAD detached at 2.12.1)                        1c69bf2 Add
recap-release since previous release messages didn't go out.
  master                                           eb70249
[origin/master] Fix: support parsing "git://" remote URI to Github URL

Expected output:

git branch --vv --no-abbrev
* (HEAD detached at 2.12.1)
1c69bf24be6de096d801435378be85a936ab0f29 Add recap-release since
previous release messages didn't go out.
  master
eb70249e724f933255b4d8c7096092f2764942b4 [origin/master] Fix: support
parsing "git://" remote URI to Github URL

[1] https://git-scm.com/docs/git-branch#git-branch---no-abbrev

I don't have any relevant configuration set.