$ git clone -n https://src.fedoraproject.org/rpms/silkscreen-fonts.git /var/lib/mock/f45-build-36004-700/root/chroot_tmpdir/scmroot/silkscreen-fonts
Cloning into '/var/lib/mock/f45-build-36004-700/root/chroot_tmpdir/scmroot/silkscreen-fonts'...
$ git fetch origin 13880a5a16aebc75387d677888042bfc5a039682:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/silkscreen-fonts
 * [new ref]         13880a5a16aebc75387d677888042bfc5a039682 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13880a5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild