title: Activity UI state is kept after screen orientation
body: <p>I know that every time when configuration changes (i.e. screen orientation) Activity is destroyed and restarted.</p>
  
  <p>However I experience a weird scenario in which UI state is recovered even if I didn't save the state at onSaveInstanceState and did not specify android:configChanges="keyboardHidden|orientation" at the Activity's manifest. Also I didnt bother to override onRetainNonConfigurationInstance.</p>
  
  <p>Example I check a checkbox or entered a value to a TextView. When I change orientation the values are still there. (I didnt save them to the database yet)</p>
  
  <p>Am I missing something?</p>
  
  <p>Update:By the way Im using SherlockActivity... would that matter</p>