message: Got main intent from activity
  The first scene isn't the main activity one anymore. The main activity holds the stack but no scenes
diff: @@ -195,7 +195,7 @@ public class NavigationStackView extends ViewGroup {
  @Override
  public void onDetachedFromWindow() {
  if (sceneItems.size() > 0) {
  - Intent mainIntent = sceneItems.get(0).intent;
  + Intent mainIntent = mainActivity.getIntent();
  mainIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
  ((ThemedReactContext) getContext()).getCurrentActivity().navigateUpTo(mainIntent);
  }
  