title: Popover controller not dismiss when click on other bar button but dismiss when click other button(or outside popover)
body: <p>I show a popover using - "presentPopoverFromBarButtonItem" - after that the popover will not dismiss when I click on the other bar button item in right navigation bar buttons. </p>
  
  <p>But dismiss the popover when I click elsewhere.
  Also the issue is not there when we show popover using - " presentPopoverFromRect: inView: " - strange?.</p>
  
  <p>Since we don't get the frame from UIBarButtonItem How can I show a popover correctly from barbutton.</p>
  
  <p>thanks,</p>