lib/action_controller/metal/params_wrapper.rb in actionpack-5.1.0.rc1 vs lib/action_controller/metal/params_wrapper.rb in actionpack-5.1.0.rc2

@@ -103,10 +103,14 @@
 
           @include_set = true
 
           unless super || exclude
             if m.respond_to?(:attribute_names) && m.attribute_names.any?
-              self.include = m.attribute_names
+              if m.respond_to?(:stored_attributes) && !m.stored_attributes.empty?
+                self.include = m.attribute_names + m.stored_attributes.values.flatten.map(&:to_s)
+              else
+                self.include = m.attribute_names
+              end
             end
           end
         end
       end