$ git clone -n https://src.fedoraproject.org/rpms/sil-shimenkan-fonts.git /var/lib/mock/f45-build-35980-700/root/chroot_tmpdir/scmroot/sil-shimenkan-fonts
Cloning into '/var/lib/mock/f45-build-35980-700/root/chroot_tmpdir/scmroot/sil-shimenkan-fonts'...
$ git fetch origin 8462ebe70cab0a263025090294f5973235f96201:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sil-shimenkan-fonts
 * [new ref]         8462ebe70cab0a263025090294f5973235f96201 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8462ebe Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild