$ git clone -n https://src.fedoraproject.org/rpms/emacs-logstash-conf.git /var/lib/mock/f45-build-8108-376/root/chroot_tmpdir/scmroot/emacs-logstash-conf
Cloning into '/var/lib/mock/f45-build-8108-376/root/chroot_tmpdir/scmroot/emacs-logstash-conf'...
$ git fetch origin 5627c42d52cb0563776f7878546d7a72330f3236:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-logstash-conf
 * [new ref]         5627c42d52cb0563776f7878546d7a72330f3236 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5627c42 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild