code: private void checkBeforeLocaleChanging() {
          boolean isLocalizationChanged = activity.getIntent().getBooleanExtra(KEY_ACTIVITY_LOCALE_CHANGED, false);
          if (isLocalizationChanged) {
              this.isLocalizationChanged = true;
              activity.getIntent().removeExtra(KEY_ACTIVITY_LOCALE_CHANGED);
          }
      }
docs: If yes, bundle will obe remove and set boolean flag to "true".