API: `/labels` doesn't work?

[onnozweers]

trafficstars

Dear dCache devs,

Is the API call /labels properly implemented? I can't get it to produce anything more than this:

{
  "children": [],
  "labels": []
}

Using a fairly recent 10.2 snapshot. The /namespace set-label and rm-label actions do work.

Thanks and happy new year!