title: IOS13 CNMutableContact Bug
body: <p>I just try to call function with below code</p>
  
  <pre><code>func bugVersionPressed() {
  
      let contact = CNMutableContact()
      contact.familyName = "aaaa"
      contact.givenName = "aaaa"
      contact.organizationName = "bbbb"
      let addContactVC = CNContactViewController(forNewContact: contact)
  
      let navController = UINavigationController(rootViewController: addContactVC)
      navController.view.backgroundColor = .red
      navController.modalPresentationStyle = .fullScreen
      self.present(navController, animated: true, completion: nil)
  }
  </code></pre>
  
  <p>But the apple seems havent handle keyboard dismiss problem, I CAN'T DISMISS THE KEYBOARD AND I CAN'T GO BACK TO THE HOME PAGE BY PRESS "Cancel"</p>
  
  <p>PIC1 : (Before present to CNContactViewController)
  <a href="https://i.stack.imgur.com/M8MAT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/M8MAT.jpg" alt="Before present to CNContactViewController"></a></p>
  
  <p>PIC2 : (Bug Case, Keyboard Cannot dismiss)
  <a href="https://i.stack.imgur.com/J5sSw.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/J5sSw.jpg" alt="Bug Case, Keyboard Cannot dismiss"></a></p>
  
  <p>PIC3 : (Wish Case, Keyboard Dismiss while Clicked "Cancel")
  <a href="https://i.stack.imgur.com/kcyU8.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kcyU8.jpg" alt="Wish Case, Keyboard Dismiss while Clicked &quot;Cancel&quot;"></a></p>
  
  <p>In case I found a AppleStore App <a href="https://apps.apple.com/cn/app/%E5%BE%AE%E5%95%86%E5%8A%A0%E7%B2%89%E5%AE%9D-%E5%85%8D%E6%B3%A8%E5%86%8C%E6%B7%BB%E5%8A%A0%E6%B4%BB%E7%B2%89-%E8%81%94%E7%B3%BB%E4%BA%BA%E5%A5%BD%E5%8F%8B%E8%87%AA%E5%8A%A8%E7%94%9F%E6%88%90/id475661774" rel="nofollow noreferrer">https://apps.apple.com/cn/app/%E5%BE%AE%E5%95%86%E5%8A%A0%E7%B2%89%E5%AE%9D-%E5%85%8D%E6%B3%A8%E5%86%8C%E6%B7%BB%E5%8A%A0%E6%B4%BB%E7%B2%89-%E8%81%94%E7%B3%BB%E4%BA%BA%E5%A5%BD%E5%8F%8B%E8%87%AA%E5%8A%A8%E7%94%9F%E6%88%90/id475661774</a> but same problem. Please tell me what can I do. Many thanks.</p>