@HandlerCallback not inherited

[KampfCaspar]

I have a couple of classes that should be serialized/deserialized in the same way. Therefore I wrote a common base class with serialization/deserialization methods and @HandlerCallback annotation. This one works as expected.
However, extended classes (with no additional properties) seem to ignore those @HandlerCallbacks and get serialized as if those methods didn't exist.

Is this the expected behaviour?

If so, the documentation should reflect this behaviour. But actually inheriting @HandlerCallbacks would IMHO seem to be more 'in style' (see also e.g. JsonSerializable)

[KampfCaspar]

#186