{
  "errors": [
    {
      "message": "Field 'people' - When called from 'VisitLambda', rewriting a node of type 'System.Linq.Expressions.ParameterExpression' must return a non-null value of the same type. Alternatively, override 'VisitLambda' and change it to not visit children of this type."
    }
  ]
}

[JsonIgnore]
public Person? Parent { get; set; }

public List<Person> Children { get; set; } = [];

builder.Entity<Person>().HasMany(p => p.Children).WithOne(a => a.Parent);

queryType.ReplaceField("people", db => db.People.OrderBy(e => e.Id), "Get a page of people").UseConnectionPaging();

{
people(first: 5) {
    edges {
      cursor
      node { # this is your expected Movie context
        id
        name
        children
        {
          id
          name
        }
      }
    }
    pageInfo {
      hasPreviousPage
      hasNextPage
      startCursor
      endCursor
    }
    totalCount
  }
}