jsonapi-resources: Filter apply never being called

I have a filter named tags, which looks like this:

filter :tags,
       verify: ->(values, _context) { values.flatten },
       apply: ->(records, values, _options) { raise("FOO BAR BAZ"); records.joins(:tags).where(tags: values)  }

Notice the raise in apply? That doesn’t ever get called…

However, if I throw that, or binding.pry into a different filter, it does get called. Is there something special with the word tags that I’m missing?

Update:

With request params of

Parameters: {"filter"=>{"tags"=>["63"], "status"=>["not_started"], "account_groups"=>["1"]}, "include"=>"account-group,tags", "page"=>{"size"=>"10"}, "sort"=>"last-name"}

and tapping into self.apply_filter, I’m seeing the tag filter coming through named tags.id, whereas other filters named as I’d expect (the param name, which correlates to the filter name)