$ git clone -n https://src.fedoraproject.org/rpms/fpart.git /var/lib/mock/f45-build-9205-400/root/chroot_tmpdir/scmroot/fpart
Cloning into '/var/lib/mock/f45-build-9205-400/root/chroot_tmpdir/scmroot/fpart'...
$ git fetch origin d6b928d681b1df8ee7832ce2bc9d7f5c73f08837:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fpart
 * [new ref]         d6b928d681b1df8ee7832ce2bc9d7f5c73f08837 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6b928d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild