Fix to check correct attribute on Request object.
Fix to check correct attribute on Request object.

Helps #26
The previous commit was checking the request attribute. Which is
pointless since that is the actual object itself. It should be checking
the actual response attribute for the one to one relationship.

django-silk/silk,mtford90/silk,crunchr/silk,crunchr/silk,mtford90/silk,django-silk/silk,django-silk/silk,jazzband/silk,crunchr/silk,jazzband/silk,django-silk/silk,crunchr/silk,mtford90/silk,mtford90/silk,jazzband/silk,jazzband/silk