Comment 13 for bug 1477605

My opinion is to preserve existing code in the review and close this bug as invalid.

But please, keep in mind that you are already have filtering by labels in CLI client, so the client appears to be fatter than you think. This change was approved by Roman, Sebastian and so on: https://review.openstack.org/#/c/204524/
All rejected changes was about only syntax of existing filtering on client side.