CC shows integer value instead of enum value

When I have a method with an optional parameter of an enum type, the CC shows the integer value instead of the enum value:

In this case it shows := 1 instead of := changable.
This is important because the values of the enums can change and there is no indication which one has the value of 1.

Thanks, logged as bugs://82867

bugs://82867 got closed with status fixed.