Add "groups" keyword for add_persona_from_details
Submitted by Travis Reitter
Link to original bug (#648162)
Description
This would be the initial set of groups for the new Persona, to make this "atomic" from the client's perspective (so they don't need to track the Persona's add and then call change_group() for each of the initial groups).
Backends should make this operation actually atomic on the storage side, if possible.
Version: git master