$ git clone -n https://src.fedoraproject.org/rpms/kwayland.git /var/lib/mock/f40-build-800515-143605/root/chroot_tmpdir/scmroot/kwayland
Cloning into '/var/lib/mock/f40-build-800515-143605/root/chroot_tmpdir/scmroot/kwayland'...
$ git fetch origin 42cc8cf0ddf8900a07bd02c142d406b83a314d6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwayland
 * [new ref]         42cc8cf0ddf8900a07bd02c142d406b83a314d6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 42cc8cf 6.0.3