$ git clone -n https://src.fedoraproject.org/rpms/python-django-haystack.git /var/lib/mock/f40-build-2026027-47191/root/chroot_tmpdir/scmroot/python-django-haystack
Cloning into '/var/lib/mock/f40-build-2026027-47191/root/chroot_tmpdir/scmroot/python-django-haystack'...
$ git fetch origin 3c4b62ac31b2961c1c590c91610cfe4bbd05aaf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-django-haystack
 * [new ref]         3c4b62ac31b2961c1c590c91610cfe4bbd05aaf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c4b62a Don't BuildRequire tox to generate a single dependency on sphinx