Weird behaviour with ORM, why?

[mcordoba]

Hi, I have two related entities, ShipmentItem and Shipment.

Shipment hasMany ShipmentItem and ShipmentItem belongsTo Shipment.

If I do:

const shipmentItem = await ShipmentItem.where({printItem_id: printItem._id}).with('shipment').first()

Then I expect to have a shipmentItem with the field shipment filled with shipment entity but not...

In shipmentItem.shipment I have a function.

I have to call the serializer in order to work with it, so it doesnt make sense to return results from querybuilder in a format you can't work with it and always have to call the serializer. Why not to return it directly in the json format?