title: How to navigate from popoverpresentation view controller to another view controller
body: <p>I have a screen with a navigation controller and it has a button on the nav bar which displays a table (from another view controller) to select things from using pop over presentation, now on clicking any of those items i want to open another view controller a different screen. </p>
  
  <p>BUT if i use        <code>navigationController?.pushViewController(tab, animated: true)</code>
    the new view controller is displayed within that small pop view itself </p>
  
  <p>and if i use <code>
  navigationController?.presentViewController(tab, animated: true)
  </code> the navigation bar isn't there on that screen and i cannot go back to the previous screen. How to do it in such a way that i can go back to the screen which first displayed the pop Up list. </p>