$ git clone -n https://src.fedoraproject.org/rpms/R-fontLiberation.git /var/lib/mock/f45-build-6071-346/root/chroot_tmpdir/scmroot/R-fontLiberation
Cloning into '/var/lib/mock/f45-build-6071-346/root/chroot_tmpdir/scmroot/R-fontLiberation'...
$ git fetch origin 10e6ab06312da0aa8f652f8db0b5edd5af924162:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-fontLiberation
 * [new ref]         10e6ab06312da0aa8f652f8db0b5edd5af924162 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10e6ab0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild