Removed unnecessary json.loads() call in test_json_agg_empty().
Removed unnecessary json.loads() call in test_json_agg_empty().

shaib/django,manhhomienbienthuy/django,monetate/django,apollo13/django,felixxm/django,auvipy/django,pauloxnet/django,blighj/django,dsanders11/django,manhhomienbienthuy/django,takis/django,monetate/django,apollo13/django,rsalmaso/django,manhhomienbienthuy/django,auvipy/django,blighj/django,shaib/django,django/django,auvipy/django,pauloxnet/django,atul-bhouraskar/django,dsanders11/django,monetate/django,pauloxnet/django,ghickman/django,atul-bhouraskar/django,django/django,MarkusH/django,takis/django,dsanders11/django,shaib/django,atul-bhouraskar/django,ghickman/django,monetate/django,MarkusH/django,solarissmoke/django,takis/django,django/django,MarkusH/django,felixxm/django,solarissmoke/django,rsalmaso/django,rsalmaso/django,apollo13/django,ghickman/django,blighj/django,takis/django,MarkusH/django,apollo13/django,django/django,solarissmoke/django,felixxm/django,rsalmaso/django,shaib/django,pauloxnet/django,dsanders11/django,manhhomienbienthuy/django,solarissmoke/django,atul-bhouraskar/django,felixxm/django,ghickman/django,auvipy/django,blighj/django