$ git clone -n https://src.fedoraproject.org/rpms/xfce4-cpufreq-plugin.git /var/lib/mock/f42-build-side-1-3536516-46558/root/chroot_tmpdir/scmroot/xfce4-cpufreq-plugin
Cloning into '/var/lib/mock/f42-build-side-1-3536516-46558/root/chroot_tmpdir/scmroot/xfce4-cpufreq-plugin'...
$ git fetch origin 5b59ec74351f79f560de2b7adc72a7a3ece2c1b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-cpufreq-plugin
 * [new ref]         5b59ec74351f79f560de2b7adc72a7a3ece2c1b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b59ec7 Update to v1.3.0; switch to meson