Duplicate Resource Objects Returned in Included

[jaredcnance]

var parent = new Parent {
    Name = "Alice"
};

var bob = new Person {
    Name = "Bob",
    Parent = parent
};

var bill = new Person {
    Name = "Bill",
    Parent = parent
};

context.Parents.Add(parent);
context.People.Add(bob);
context.People.Add(bill);
context.SaveChanges();

GET /api/v1/people?include=parent HTTP/1.1
Host: localhost:5000

returns duplicate entries for Alice in the included document:

{
  "data": [ ... ],
  "included": [
    {
      "type": "parents",
      "id": "3",
      "attributes": {
        "name": "Alice"
      },
      "relationships": {
        "people": {
          "links": {
            "self": "http://localhost:5000/api/v1/parents/3/relationships/people",
            "related": "http://localhost:5000/api/v1/parents/3/people"
          }
        }
      }
    },
    {
      "type": "parents",
      "id": "3",
      "attributes": {
        "name": "Alice"
      },
      "relationships": {
        "people": {
          "links": {
            "self": "http://localhost:5000/api/v1/parents/3/relationships/people",
            "related": "http://localhost:5000/api/v1/parents/3/people"
          }
        }
      }
    }
  ]
}

Investigation:

• Inspect tests
• DocumentBuilder.AddIncludedEntity

Thanks @grw300 for reporting this!