Comment 5 for bug 1821690

Just FYI, I compared tempest.confs before and now and there is a difference in network-feature-enabled.api_extensions. The new failing one contains also qos-rules-alias extension and according to this bug [1] the feature adding the extension was merged 5 days ago, maybe this is part of the reason the test is failing?

[1] https://bugs.launchpad.net/neutron/+bug/1777627/comments/23