title: UISearchBar with UIPopoverController holding results cannot be interacted with while UIPopoverController is on screen
body: <p>I have a UISearchBar. When the user touches the UISearchBar, a UIPopoverController is shown that contains a UITableView of results. As the user types, the results appear.</p>
  
  <p>I want the user to be able to touch the grey x button in the UISearchBar to clear the search results and clear the UISearchBar's text field. However, the first touch simply dismisses the UIPopoverController, prompting the user to touch the button a second time to clear out the text field.</p>
  
  <p>Is there a way to allow touch interaction with other object while a UIPopoverController is showing?</p>