query.include_result: Result type has no field of the right shape for an include

Result type has no field of the right shape for an include.

Area 6, Reads and writes; not declinable; the next step is usually the agent's.

example

type Name = Text {    max_length: 80}entity Author {    id: Uuid    name: Name}entity Book {    id: Uuid    author_id: Author.id {        on_delete: OnDelete.cascade    }    title: Name}type BookCard = Output {    pick: [Book.id, Book.title]    author: List<Author>}query cards() -> List<BookCard> {    from: Book    order: [Book.title asc]    limit: 20    include: {        author: Book.author_id    }}

jadpo checkcheck failed: 1 error, 1 file

error BookCard.author is List<Author>, which the include author can't fill

--> main.jadpo:28:9

   |28 |         author: Book.author_id   |         ^^^^^^ needs `Author`

reason: author follows a required reference, so the one record it points at is always there. Its field is Author, where Author may also be an object type derived from it.
next: Declare author: Author in BookCard (agent)
rule: query.include_result
help: https://jadpo.dev/docs/errors/query.include_result