$ git clone -n https://src.fedoraproject.org/rpms/planarity.git /var/lib/mock/f45-build-28551-631/root/chroot_tmpdir/scmroot/planarity
Cloning into '/var/lib/mock/f45-build-28551-631/root/chroot_tmpdir/scmroot/planarity'...
$ git fetch origin c110376361c8de1a21f02d2373f94d88a5d3ef60:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/planarity
 * [new ref]         c110376361c8de1a21f02d2373f94d88a5d3ef60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c110376 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild