Only means that Nano does not display the additional char i guess. but nembex does:
http://chain.nem.ninja/#/transfer/c25a91c84d4a664f932fa87fc3b21e8f58d92f596f7c5533b14647afc1920a39
Not sure, might be due to copy & paste or something else. Ithing @mizunashi once explained how it can happen when using a japanese keyboard.