https://github.com/nikitasius/Telegraher/blob/317108e25da1dc254fae210533e62c0c3ffc400e/TMessagesProj/src/main/java/org/telegram/messenger/LocaleController.java#L3345
It will call 4 times
ConnectionsManager.setLangCode which will call 4 times native_setLangCode(a, langCode);... 16 calls for nothing.