title: popBackStack() after saveInstanceState()
body: <p>I'm running into an issue where I have an Activity with multiple fragments. For any individual fragment, you can perform a search operation, which works just fine...if you search from any of the fragments, it will display a new Activity to handle the searching, then return the result to the Activity to handle displaying a new fragment. The problem is, after a search operation, I want to be able to clear (almost) all the fragments away using <code>popBackStackImmediate(...)</code> and since <code>saveInstanceState(...)</code> was called, I get an exception that says: </p>
  
  <pre><code>"java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState"
  </code></pre>
  
  <p>Any idea how to pop from the back stack after <code>onSaveInstanceState</code> has been called?</p>