$ git clone -n https://src.fedoraproject.org/rpms/kf6-kguiaddons.git /var/lib/mock/f41-build-858156-168316/root/chroot_tmpdir/scmroot/kf6-kguiaddons
Cloning into '/var/lib/mock/f41-build-858156-168316/root/chroot_tmpdir/scmroot/kf6-kguiaddons'...
$ git fetch origin f209b5185800113dbefaa2bea111640cbbd43ddc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kguiaddons
 * [new ref]         f209b5185800113dbefaa2bea111640cbbd43ddc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f209b51 6.7.0