$ git clone -n https://src.fedoraproject.org/rpms/python-geoip2.git /var/lib/mock/f40-build-2106231-50593/root/chroot_tmpdir/scmroot/python-geoip2
Cloning into '/var/lib/mock/f40-build-2106231-50593/root/chroot_tmpdir/scmroot/python-geoip2'...
$ git fetch origin f009be68d9d8f11e0fc07c8af0b1c06a84a3fbf7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-geoip2
 * [new ref]         f009be68d9d8f11e0fc07c8af0b1c06a84a3fbf7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f009be6 Update to 4.8.0 (rhbz#2253301)