$ git clone -n https://src.fedoraproject.org/rpms/sil-nuosu-fonts.git /var/lib/mock/f45-build-35979-700/root/chroot_tmpdir/scmroot/sil-nuosu-fonts
Cloning into '/var/lib/mock/f45-build-35979-700/root/chroot_tmpdir/scmroot/sil-nuosu-fonts'...
$ git fetch origin 3db83fcac05fe5f3e32d12a047556f93e4471b6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sil-nuosu-fonts
 * [new ref]         3db83fcac05fe5f3e32d12a047556f93e4471b6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3db83fc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild