title: error when using EKEventEditViewController
body: <p>I have the following code :</p>
  
  <pre><code>EKEventEditViewController *addController = [[EKEventEditViewController alloc] initWithNibName:nil bundle:nil];
  
  EKEvent * event = [EKEvent eventWithEventStore:eventStore];
  
  event.startDate = startDate;
  
  event.endDate = endDate;
  
  addController.eventStore = self.eventStore;
  
  addController.event = event;
  
  addController.editViewDelegate = self;
  
  [self presentModalViewController:addController animated:YES];   
  [addController release];
  </code></pre>
  
  <p>It show me a screen to add event like iCal, but when I press "done" button to add event I got an alert "That event does not belong to that event store." and in console log I got <code>"Calendar: unable to save: Error Domain=EKErrorDomain Code=11 "</code>That event does not belong to that event store.<code>" UserInfo=0xfecb150 {NSLocalizedDescription=That event does not belong to that event store.}"</code> , but this just occur in iOS 5., ok with 4. Can anyone help me this  :)</p>