User tests: Successful: Unsuccessful:
Changing the storage format for the field_mappings in #__content_types to object->object instead of object->array[0]->object.
The array part is not needed at all.
Tracker:
http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=30607
Doing new one... Can't figure out how to update branch properly...