$ git clone -n https://src.fedoraproject.org/rpms/xfce4-systemload-plugin.git /var/lib/mock/f40-build-2045746-48807/root/chroot_tmpdir/scmroot/xfce4-systemload-plugin
Cloning into '/var/lib/mock/f40-build-2045746-48807/root/chroot_tmpdir/scmroot/xfce4-systemload-plugin'...
$ git fetch origin 50fc9be9361eef70be9458cc7d12e5a57c83ed9e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-systemload-plugin
 * [new ref]         50fc9be9361eef70be9458cc7d12e5a57c83ed9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50fc9be Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild