[Developers] duplicate results when using an optional clause?

[Tom Gordon]

I'm querying for musical genres with this query:

[{
     "type": "/music/genre",
     "limit": 100,
     "id":null,
     "guid":null,
     "name":null,
     "key":[],
     "timestamp":null,
     "permission":[],
     "creator":[],
     "attribution":[],
     "parent_genre": [{
         "id": null,
         "optional": true
     }]
}]

If I don't specify "id" for the parent_genre, I get the name instead,  
which is may not be unique (it may be for this specific type, but you  
get the idea).

If I don't specify the "optional", then I only get genres that have a  
parent.

If I do specify the "optional", I seem to be getting duplicates in  
the results.  It looks to me like any genre that does have a parent  
is being sent twice.

Is this a bug or should I be doing something differently?  It's not a  
gigantic thing but I have other queries and would like to know what's  
going on here.

Oh yeah, also the cursor is looping back today - I never get "false",  
but I do get repeats (it just loops forever).

Thanks!
Tom

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