title: Presenting a modal view controller immediately after dismissing another
body: <p>I'm dismissing a modal view controller and then immediately presenting another one, but the latter never happens. Here's the code:</p>
  
  <pre>
   [self dismissModalViewControllerAnimated:YES];
  
   UIImagePickerController *picker = [[UIImagePickerController alloc] init];
   picker.delegate = self;
   picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
   [self presentModalViewController:picker animated:YES];
  </pre>
  
  <p>The first modal VC slides down, but the new <code>picker</code> never comes up. Any idea as to what's going on?</p>