This isn't fixed properly

The linked code is:

        String languageCode = Locale.getDefault().getDisplayLanguage();
        Locale locale = new Locale(languageCode);
        Locale.setDefault(locale);

But `getDisplayLanguage()` is defined as returning the display name, not the language code:

> if the locale is en_US and the default DISPLAY locale is fr_FR, getDisplayLanguage() will return "anglais"

https://developer.android.com/reference/java/util/Locale#get...()

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This then proceeds to create a locale with a corrupt language code. The language parameter of `Locale` is not validated (besides a null check), and using a corrupt Locale in `Locale.setDefault()` will cause a number of bugs