$ git clone -n https://src.fedoraproject.org/rpms/xfce4-cpufreq-plugin.git /var/lib/mock/f41-build-side-1-2810794-32921/root/chroot_tmpdir/scmroot/xfce4-cpufreq-plugin
Cloning into '/var/lib/mock/f41-build-side-1-2810794-32921/root/chroot_tmpdir/scmroot/xfce4-cpufreq-plugin'...
$ git fetch origin abb4a9f0291129d1a25e1765c9fa2e838b4c9737:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-cpufreq-plugin
 * [new ref]         abb4a9f0291129d1a25e1765c9fa2e838b4c9737 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at abb4a9f convert GPLv2+ license to SPDX