relationships weirdness

gistfile1.txt

App.Event = DS.Model.extend({
  user: DS.belongsTo('user'),
  project: DS.belongsTo('project', {inverse: null})
});

App.Project = DS.Model.extend({
  users: DS.hasMany('user', { async: true, inverse: null}),
  administrators: DS.hasMany('user', { async: true, inverse: null}),
});

App.User = DS.Model.extend({
  // crash if not defined
  //events: DS.hasMany('event', {async: true})
});