lmorchard/kuma — comment on commit ef351ef9f67b9983474e1d530b4024d40eecf734
File: apps/wiki/views.py line 243
By lmorchard:

That's Kitsune restricting all but admins from being able to tag things with tags that aren't already used.

ie. Only admins can create new tags, everyone else has to pick from the pre-established vocabulary