Polymorphic association doesn't use model_name

I have the following (simplified) setup:

class User < ActiveRecord::Base;
class Member < ActiveRecord::Base;

class MemberResource < JSONAPI::Resource
  model_name 'User'
end

class BookResource < JSONAPI::Resource
   has_one :author, polymorphic: true  # type is 'Member' here
end

class AuthorResource < JSONAPI::Resource; end

When I tried to request GET /books/:book_id/author JR will load Member from members table and not users as it's described with model_name.

Would say it's a bug?

I know that my use case is a little bit complex, but in that simplified example we decide to show User as Member in the API (we have different model names).

Commencez par suivre le chemin GET /books/:book_id/author pour l'association polymorphe author de BookResource et comparez sa résolution de type avec le model_name 'User' de MemberResource. Reproduisez l'exemple avec User, Member, MemberResource et BookResource, puis vérifiez que l'association se résout vers users plutôt que vers members, tout en conservant les noms des ressources API.