$ git clone -n https://src.fedoraproject.org/rpms/python-maxminddb.git /var/lib/mock/f40-build-2222774-52711/root/chroot_tmpdir/scmroot/python-maxminddb
Cloning into '/var/lib/mock/f40-build-2222774-52711/root/chroot_tmpdir/scmroot/python-maxminddb'...
$ git fetch origin 0ace45225931f0a37cd0c87d57e67822ba49efd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-maxminddb
 * [new ref]         0ace45225931f0a37cd0c87d57e67822ba49efd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ace452 Update to 2.5.2 (rhbz#2257529)