$ git clone -n https://src.fedoraproject.org/rpms/kf6-kio.git /var/lib/mock/f41-build-809531-146295/root/chroot_tmpdir/scmroot/kf6-kio
Cloning into '/var/lib/mock/f41-build-809531-146295/root/chroot_tmpdir/scmroot/kf6-kio'...
$ git fetch origin a189aa433b5d105f24b17838d26c794305a06ff2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kio
 * [new ref]         a189aa433b5d105f24b17838d26c794305a06ff2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a189aa4 6.2.0