title: Bluetooth activation Alert dialog multiplication after screen rotation
body: <p>I have encountered strange issue. From Activity onStart() I request Bluetooth activation and 120s discoverability via intent:</p>
  
  <pre><code>Intent activateBTIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
  startActivityForResult(activateBTIntent, BT_ACTIVATE_INTENT);                                   
  </code></pre>
  
  <p>I use it no matter if the Bluetooth is already activated or not. Android documentation says that Bluetooth will be activated if it was not, and that works fine. In both cases I get system Alert dialog</p>
  
  <p><img src="https://i.stack.imgur.com/9cDHZ.png" alt="enter image description here"></p>
  
  <p>When I rotate the screen I observe flickering. Press on Yes/No removes one dialog, but there is still another one below. Performing screen rotation I can get a pile of Alert dialogs, and have to press Yes/No on each to get rid of them.</p>
  
  <p>Described issue is present only if Bluetooth was not already started when intent was sent, otherwise it works correctly. Tried on different 2.2 phones, and issue is present on all. Looks to me like Android system issue.</p>
  
  <p>Has anybody encountered it also, and maybe have some useful hint how to avoid this?</p>
  
  <p>Thanks and regards.</p>