$ git clone -n https://src.fedoraproject.org/rpms/kf6-kguiaddons.git /var/lib/mock/f41-build-860851-169221/root/chroot_tmpdir/scmroot/kf6-kguiaddons
Cloning into '/var/lib/mock/f41-build-860851-169221/root/chroot_tmpdir/scmroot/kf6-kguiaddons'...
$ git fetch origin 630e3bd9b031d7b602c11aaae3fdf2a1568e160c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kguiaddons
 * [new ref]         630e3bd9b031d7b602c11aaae3fdf2a1568e160c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 630e3bd Merge branch 'rawhide' into f40