title: UISearchController disappears when pushing a new UIViewController
body: <p>I'm currently working with an example from Raywenderlich: <a href="https://www.raywenderlich.com/472-uisearchcontroller-tutorial-getting-started" rel="nofollow noreferrer">UISearchController-Tutorial</a> (The finished project is at the end of their article or <a href="https://koenig-media.raywenderlich.com/uploads/2017/10/CandySearch_4_Finished.zip" rel="nofollow noreferrer">here</a>) and I noticed that when I execute a search and click on one of the results, during the push transition, the UISearchController disappears. It's visible on this video: <a href="https://drive.google.com/open?id=1UEzeZ1XyZ8pr1LnGtof3aLtpxXn0fMeB" rel="nofollow noreferrer">here</a></p>
  
  <p><a href="https://i.stack.imgur.com/gaXpY.png" rel="nofollow noreferrer">Before selecting a result</a></p>
  
  <p><a href="https://i.stack.imgur.com/BeL2C.png" rel="nofollow noreferrer">During the transition to the new VC</a></p>
  
  <p>I run this example with Xcode 10, iOS 12 (sim: iPhone 8)</p>
  
  <p>Any idea / pointer would be deeply appreciated</p>
  
  <p>Cheers.</p>