title: viewDidLoad of an unrelated UIViewController is getting called
body: <p>While debugging a problem, I noticed that when changing orientation, the <code>viewDidLoad</code> of an unrelated <code>UIViewController</code> is getting called.</p>
  
  <p>It appears to be unrelated to my problem, but it's totally weird.</p>
  
  <p>This <code>UIViewController</code> is accessible only from the <code>UITabBar</code> (in the storyboard itself)</p>