$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcompletion.git /var/lib/mock/f40-build-1258346-23032/root/chroot_tmpdir/scmroot/kf5-kcompletion
Cloning into '/var/lib/mock/f40-build-1258346-23032/root/chroot_tmpdir/scmroot/kf5-kcompletion'...
$ git fetch origin 15075e06913e508ec253f58510a9d2343bc016a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kcompletion
 * [new ref]         15075e06913e508ec253f58510a9d2343bc016a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15075e0 5.116.0