Mirage serializer drop Ids when include and embed some model

I have a problem with mirage.

I am defining a serializer extending ActiveModelSerializer with serializeIds: 'always', in this case the model is serialized with the relations models ids.

But when i want include some model in the serialized content i use include: ['someModel'], in that case the someModel is included succesfully, but the ids of the rest of relationships are ignored.

How can i include the ids too?