$ git clone -n https://src.fedoraproject.org/rpms/sil-mingzat-fonts.git /var/lib/mock/f45-build-35976-700/root/chroot_tmpdir/scmroot/sil-mingzat-fonts
Cloning into '/var/lib/mock/f45-build-35976-700/root/chroot_tmpdir/scmroot/sil-mingzat-fonts'...
$ git fetch origin 5b943b2733421c466bc77f09d7b37ac075bc20ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sil-mingzat-fonts
 * [new ref]         5b943b2733421c466bc77f09d7b37ac075bc20ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b943b2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild