Relationship links missing ids

[jaredcnance]

Relationship links are fine for /todo-items/:id:

"owner": {
        "links": {
          "self": "http://localhost:5000/api/v1/todo-items/422/relationships/owner",
          "related": "http://localhost:5000/api/v1/todo-items/422/owner"
        }
      }

However, they are broken for /todo-items

"owner": {
          "links": {
            "self": "http://localhost:5000/api/v1/todo-items/relationships/owner",
            "related": "http://localhost:5000/api/v1/todo-items/owner"
          }
        }

and people/:id

"relationships": {
      "todo-items": {
        "links": {
          "self": "http://localhost:5000/api/v1/relationships/todo-items",
          "related": "http://localhost:5000/api/v1/todo-items"
        }
      }
    }