How do you get the tree picker to display for kb_category with Knowledge V3

[Jerry20]

We are just starting the migration from Knowledge V2 to V3, developing our knowledge in Helsinki.   I seem to remember that when you create a knowledge article, assign the knowledgebase and then assign the category, there was a tree picker for the category field.   The dictionary attribute for kb_category has field_decorations=kb_category_reference_lookup.   I'm still seeing the traditional method of displaying categories

[Jerry20]

I received an answer back from SN:   this is a known error documented as Product defect in PRB658812.   Development is still working on fixing this
issue and therefore I will mark this incident as Pending Problem. I will assign it to a problem manager who can update us on this PRB. It is targeted to be fixed in Helsinki Patch 2.

[Bhadley]

Not sure if this is the same as others but for myself it appears that I was missing the UI Macro "kb_category_reference_lookup" all together which was preventing the new category tree picker from showing up. I was sent the attached xml to add it back in, as soon as I did it was working fine

[toddcrane]

This worked for me as well

[Tom Alday]

In the dictionary entry for kb_category under Reference Specifications you need it set to Advanced with this qualifier:

javascript: new global.KnowledgeRefQualifiers().getRefQualCategoryIdsForKB(current.kb_knowledge_base);

[Jerry20]

I have that exact statement in the reference qual field, this does not work for me.   I opened a ticket with SN about a month ago, this has been identified as a problem and will be fixed in Helsinki patch 2, PRB658812