Japan’s feisty online community briefly urged a boycott of Aussie Beef — arguably Australia’s best-known export to Japan — after an Austrian school textbook referred to the Sea of Japan as the “East Sea,” a Korean label aimed at helping it forget its past as a Japanese colony, according to a June 28 report from online Japanese news site J-Cast. Australia, which uses Sea of Japan in its school materials and official documents, had nothing to do with the textbook. Among the comments posted online were “That Australian mob are simple and will fall for anything,” “Why’s Australia calling it…