Added a condition for when the subState is a string just return instead of trying to get a subPath from it
Added a condition for when the subState is a string just return instead of trying to get a subPath from it

peterox/react-redux-form,davidkpiano/react-redux-form,nikitka/react-redux-form,maludwig/react-redux-form,davidkpiano/redux-simple-form