Fixed #1336 -- made USStateField work correctly when data is None (thanks, chrisb)
Fixed #1336 -- made USStateField work correctly when data is None (thanks, chrisb)

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@2427 bcc190cf-cafb-0310-a4f2-bffc1f526a37

hugs/django,django-nonrel/django-nonrel,bfirsh/django-old,t11e/django,jamespacileo/django-france,django-nonrel/django-nonrel,skevy/django,jamespacileo/django-france,Instagram/django,sam-tsai/django-old,sam-tsai/django-old,disqus/django-old,alex/django-old,skevy/django,disqus/django-old,Smarsh/django,bfirsh/django-old,mitsuhiko/django,skevy/django,rawwell/django,Instagram/django,t11e/django,Smarsh/django,hugs/django,mitsuhiko/django,alex/django-old,mitsuhiko/django,rawwell/django,dcramer/django-compositepks,django-nonrel/django-nonrel,t11e/django,bfirsh/django-old,disqus/django-old,dcramer/django-compositepks,rawwell/django,Smarsh/django,Smarsh/django,sam-tsai/django-old,alex/django-old,sam-tsai/django-old,dcramer/django-compositepks,hugs/django,jamespacileo/django-france,Instagram/django