joomla/joomla-cms — pull request #1068 by Bakual (2013-04-27 18:37:49+00:00)
Title: Removing the array part in field_mappings

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