Params page does not hide "hidden" knobs

[jhiemstrawisc]

I noticed this while looking at this param definition:

name: Director.FilterCachesInErrorState
description: |+
  If true, the Director will filter out any caches that report a health status worse than "warning" when deciding which
  caches might fulfill a client request. This filter is independent of the cache sorting method, and is applied before sorting.

  This knob is meant mostly to aid in unit testing, where it has been tricky to start all tests with healthy services.
type: bool
default: true
hidden: true
components: ["director"]

The param should be hidden, but the current version of docs still display it