properties/collections with a defined 'getter' block ignore represent_with parameter

[bglusman]

We started using Roar::Decorator's a while ago so I forget if this was an issue on modules too, but definitely the case on Decorator's.... I've been burned by this a few times now when I forget about it, it feels like a bug to me, but perhaps it's documented/known? Seems like it would be nice to use it when it's specified though.

To provide an example:

class V3::AnswerRepresenter < Roar::Decorator

property :id
property :response, represent_with: V3::ResponseRepresenter, getter: ->(opts) { responses.first }, embedded: true

end

Normally this would work fine without the getter option, but when the getter is present, it's response is not passed through the specified representer and instead has to_json called on it directly or something.