Something that I noticed in the last update I did was that the raw_id_admin field changed (again!). Originally it looked like this: verbose_field_name [ ] <mag icon> selected_object.__repr__() I think this changed sometime in the last few revs so that the selected_object.__repr__() disappeared. With my last update (to 1556) it came back again. Perhaps this has something to do with the problems you are seeing. Also might make sense to eliminate possibilities one by one, starting with the extra options (limit_choices_to and raw_id_admin).
-rob
