$ git clone -n https://src.fedoraproject.org/rpms/kf6-kjobwidgets.git /var/lib/mock/f45-build-15087-468/root/chroot_tmpdir/scmroot/kf6-kjobwidgets
Cloning into '/var/lib/mock/f45-build-15087-468/root/chroot_tmpdir/scmroot/kf6-kjobwidgets'...
$ git fetch origin cc3926353b109c3982bec9137166b4dcc3e83b7f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kjobwidgets
 * [new ref]         cc3926353b109c3982bec9137166b4dcc3e83b7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc39263 6.31.0