Querying type for specific schema results in internal server error

[marktani]

What is the current behavior?

Querying a type that is related to another type containing the fields a and b results in an internal server error.

Please share the relevant part of your project (GraphQL schema, functions, permissions, ...) for easier reproduction

type Post implements Node {
  id: ID! @isUnique
  comment: Comment! @relation(name: "PostComment")
  title: String!
}

type Comment implements Node {
  id: ID! @isUnique
  post: Post! @relation(name: "PostComment")
  a: Int
  b: Int
}

If applicable, share the query, mutation or subscription for reproduction

First, create a new post-comment:

mutation a {
  createPost(title: "a" comment: {a: 1, b: 3}) {
    id
  }
}

Then, query all posts:

query b {
  allPosts {
    id
    comment {
      id
    }
  }
}

You'll receive an internal server error.

What is the expected behavior?

You receive the data and no error occurs.