Added unit test to one_to_one model that confirms #527
Added unit test to one_to_one model that confirms #527

git-svn-id: http://code.djangoproject.com/svn/django/trunk@648 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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extra : convert_revision : 2b7f557e12e8d54b8581350685fc3844435f1651

adieu/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,heracek/django-nonrel,heracek/django-nonrel,adieu/django-nonrel