list network with labelselector not working in operator

[Abirdcfly]

see https://github.com/bestchains/fabric-operator/pull/224/files#diff-aaf25efa7147cfaef6c204ac24887f2e23eab5eefe99850acad74c24b9e743f1R249-R293 for detail.

	n1 := &current.NetworkList{}
	_ = c.List(context.TODO(), n1)
	for i, u := range n1.Items {
		log.Info(fmt.Sprintf("full %d, name:%s, label:%s", i, u.Name, u.Labels))
	}

	selector := labels.SelectorFromSet(map[string]string{"bestchains.network.federation": "federation-sample"})
	n2 := &current.NetworkList{}
	_ = c.List(context.TODO(), n2, &client.ListOptions{LabelSelector: selector})

The phenomenon is that n1 does query a network, and the label contains bestchains.network.federation: federation-sample, but n2 does not query the result.