nonworking ember data example with relationships

emberDataBorked.js

// lookup the store
store = OC2.__container__.lookup('store:main');

// add a serializer to handle our embedded records
// ...either I'm getting this wrong or this is a bug,
// as I can't get this part to work
OC2.ColorSerializer = DS.ActiveModelSerializer.extend(DS.EmbeddedRecordsMixin, {
  attrs: {
    foos: {embedded: 'always'}
  }
});

// Models
OC2.Color = DS.Model.extend({
  color: DS.attr(),
  foos: DS.hasMany('foo')
});

OC2.Foo = DS.Model.extend({
  name: DS.attr()
});

// data
t = {
    colors:[
      {
        id: 1,
        color: "red",
        foos:[
          {
            id:1,
            name:'something 1'
          },
          {
            id:2,
            name:'something 2'
          }
        ]
      },
      {
        id: 2,
        color: "green",
        foos:[
          {
            id:3,
            name:'something 3'
          },
          {
            id:4,
            name:'something 4'
          }
        ]
      },
      {
        id: 3,
        color: "blue",
        foos:[
          {
            id:5,
            name:'something 5'
          },
          {
            id:6,
            name:'something 6'
          }
        ]
      }
     ]
  };

// push color data into the store
store.pushMany('color', t.colors);

// get a color
color = store.getById('color', 1);

// lookup foos
// this will bomb with
// TypeError: Cannot read property 'typeKey' of undefined
color.get('foos');