title: How to forget the "Never ask again" choice in Android M runtime permission dialog
body: <p><a href="https://i.stack.imgur.com/BKf6g.png" rel="noreferrer"><img src="https://i.stack.imgur.com/BKf6g.png" alt="enter image description here"></a></p>
  
  <p>I wish to know where the "Never ask again" checkbox boolean flag is stored and how to clear its value? Not necessarily programmatically, but manually - via setting, command or some tool. Tried clearing app data, uninstall, both uninstall and clear, tried manual switching the permissions on/off back and forth, tried even setting up a newer Marshmallow image for the emulator but no luck!</p>