title: InteractivePopGestureRecognizer causing app freezing
body: <p>In my app I have different controllers. When I push controller1 to navigation controller and swipe to back, all works good. But, if I push navigation controller1, and into controller1 push controller2 and try to swipe to back I get a frozen application. If go back through back button all works fine.</p>
  
  <p>How can I catch the problem?</p>