Fixed #2685 -- Correctly process blank input for USStateField elements. Thanks, dackze+django@gmail.com.
Fixed #2685 -- Correctly process blank input for USStateField elements. Thanks,
dackze+django@gmail.com.


git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@3785 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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