Removed hardcoded pk in defer_regress test.
Removed hardcoded pk in defer_regress test.

manhhomienbienthuy/django,wkschwartz/django,blighj/django,pauloxnet/django,shaib/django,adamchainz/django,manhhomienbienthuy/django,shaib/django,wkschwartz/django,rsalmaso/django,atul-bhouraskar/django,rsalmaso/django,django/django,auvipy/django,elena/django,pauloxnet/django,koordinates/django,MarkusH/django,MarkusH/django,solarissmoke/django,ghickman/django,apollo13/django,freakboy3742/django,wkschwartz/django,django/django,shaib/django,takis/django,ghickman/django,felixxm/django,koordinates/django,ghickman/django,dsanders11/django,pauloxnet/django,blighj/django,monetate/django,django/django,elena/django,rsalmaso/django,dsanders11/django,freakboy3742/django,apollo13/django,takis/django,koordinates/django,django/django,adamchainz/django,atul-bhouraskar/django,MarkusH/django,adamchainz/django,solarissmoke/django,adamchainz/django,atul-bhouraskar/django,shaib/django,solarissmoke/django,monetate/django,elena/django,apollo13/django,auvipy/django,blighj/django,manhhomienbienthuy/django,pauloxnet/django,takis/django,freakboy3742/django,felixxm/django,apollo13/django,auvipy/django,MarkusH/django,blighj/django,monetate/django,wkschwartz/django,atul-bhouraskar/django,elena/django,felixxm/django,ghickman/django,monetate/django,koordinates/django,takis/django,dsanders11/django,solarissmoke/django,felixxm/django,dsanders11/django,manhhomienbienthuy/django,rsalmaso/django,auvipy/django