Fix inherited pk and add field accessor access to relations

0.10.13

✨ Features

• Allow passing field accessors in select_related and prefetch_related aka. python style select_related #225.
  • Previously:

    await Post.objects.select_related(["author", "categories"]).get()
    await Author.objects.prefetch_related("posts__categories").get()

  • Now also:

    await Post.objects.select_related([Post.author, Post.categories]).get()
    await Author.objects.prefetch_related(Author.posts.categories).get()

🐛 Fixes

• Fix overwriting default value for inherited primary key #253