$ git clone -n https://src.fedoraproject.org/rpms/libmaxminddb.git /var/lib/mock/f45-build-16516-487/root/chroot_tmpdir/scmroot/libmaxminddb
Cloning into '/var/lib/mock/f45-build-16516-487/root/chroot_tmpdir/scmroot/libmaxminddb'...
$ git fetch origin 369dca014387bd2f5f59110db95bc5649e3961ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmaxminddb
 * [new ref]         369dca014387bd2f5f59110db95bc5649e3961ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 369dca0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild