$ git clone -n https://src.fedoraproject.org/rpms/kf6-kpeople.git /var/lib/mock/f42-build-862035-170551/root/chroot_tmpdir/scmroot/kf6-kpeople
Cloning into '/var/lib/mock/f42-build-862035-170551/root/chroot_tmpdir/scmroot/kf6-kpeople'...
$ git fetch origin b6e868f030296de04b95308550eef41bc614483b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kpeople
 * [new ref]         b6e868f030296de04b95308550eef41bc614483b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b6e868f 6.8.0