$ git clone -n https://src.fedoraproject.org/rpms/xfce4-clipman-plugin.git /var/lib/mock/f42-build-side-1-3537091-46559/root/chroot_tmpdir/scmroot/xfce4-clipman-plugin
Cloning into '/var/lib/mock/f42-build-side-1-3537091-46559/root/chroot_tmpdir/scmroot/xfce4-clipman-plugin'...
$ git fetch origin 6461799a0448571ed05e7ef862d64f2b43f3613a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-clipman-plugin
 * [new ref]         6461799a0448571ed05e7ef862d64f2b43f3613a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6461799 Update to v1.7.0; switch to meson