Fixed functionality to include method in params_wrapper.rb

to properly wrap all attributes, including those which are nested.

actionpack/lib/action_controller/metal/params_wrapper.rb

@@ -113,6 +113,13 @@ def include
                 self.include = m.attribute_names
               end
             end
+            if m.respond_to?(:nested_attributes_options) && m.nested_attributes_options.any?
+              nested_attributes_names = self.nested_attributes_options.keys.map do |key| 
+                key.to_s.concat('_attributes').to_sym
+              end
+              self.include += nested_attributes_names
+            end
+
           end
         end
       end