Images break on extended models

[bilogic]

Some of my models extend from other models in order to apply scopes, but they all point back to the same table.
Images are not loaded when the model namespace is different from the one in model_type

Anyway to make it more flexible? I was thinking:

1. Allow a definable key to match the stored model_type (unsure if Laravel allows this). The default for this definable key is assigned the model namespace which makes it backward compatible
2. As I make collection_name unique to each table-field-collection, maybe media() can be made pull in the records matching model_id and collection_name without needing model_type?