onOpened() isn't called on screen rotation

[0legg]

If you're making some module that needs to update frequently in runtime, it makes sense to run updates if and only if DebugDrawer is visible (e.g. between onOpened() and onClosed()) and Activity is running (e.g. between onResume() and onPause()).

If we're rotating the screen, DrawerLayout itself maintains its visibility, but it can be new DrawerLayout per se, so we'll get into situation when DrawerLayout is open, as well as DebugDrawer, but onOpened() method for this instance was never called.