$ git clone -n https://src.fedoraproject.org/rpms/bsd-games.git /var/lib/mock/f42-build-882131-184162/root/chroot_tmpdir/scmroot/bsd-games
Cloning into '/var/lib/mock/f42-build-882131-184162/root/chroot_tmpdir/scmroot/bsd-games'...
$ git fetch origin b8c9baac4a6d96e0294a7a5fc62ababd95a47db2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bsd-games
 * [new ref]         b8c9baac4a6d96e0294a7a5fc62ababd95a47db2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8c9baa Add sysusers.d config file to allow rpm to create users/groups automatically