
I think it's a bug.
here is it's "twin brother":
http://www.geni.com/tr8n/phrases/view?translation_key_id=228735
there is a real phrase with {target{ token
This is even more tricky. I don't know how to send out request which generates it.
I know that in Geni is small group of "Public User" - Public profiles who are "partly" Claimed (i.e. claimed but permanent password not sent), and they have always managers. Collaboration at these "you's" possible is only possibility for such phrase, but usually this collaboration is done via managers, not via these halfly claimed users.