$ git clone -n https://src.fedoraproject.org/rpms/plasma-nano.git /var/lib/mock/f40-build-788682-135303/root/chroot_tmpdir/scmroot/plasma-nano
Cloning into '/var/lib/mock/f40-build-788682-135303/root/chroot_tmpdir/scmroot/plasma-nano'...
$ git fetch origin dd70156f9d3f7b18647893238724615ba6c48093:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-nano
 * [new ref]         dd70156f9d3f7b18647893238724615ba6c48093 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd70156 6.0.0