Merge "Fix a bug where cards overlap when rotating the screen"

    private void showFragment(Fragment fragment, int id, String tag) {

        final FragmentManager fragmentManager = getSupportFragmentManager();

        final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

        final Fragment showFragment = fragmentManager.findFragmentById(id);

        if (showFragment == null) {

            fragmentTransaction.add(id, fragment, tag);

        } else {

            fragmentTransaction.show(showFragment);

        }

        fragmentTransaction.commit();

    }

}

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