title: UISearchBar height on iOS8 when showsScopeBar=YES
body: <p>I'm using <code>UISearchBar</code> in my app, with <code>showsScopeBar=YES</code>. When running under iOS8 (both in the simulator and on a device) the scope bar is hidden and the search bar's height remains at 44 instead of the expected 88. Using the new view debugger in Xcode 6 I can see that the scope bar is actually present, but remains hidden behind the text field.</p>
  
  <p>The only way I've found so far is to manually set the search bar's height to 88, which of course is a terrible hack.</p>
  
  <p>Am I missing some documented incompatibility, or is this a bug?</p>