The stock could experience the beginning of a surprise recovery.Things have continued to go wrong for Constellation Brands (STZ 1.42%), particularly over the last year.Rising tariffs have caused worries about the sales of its top beer brands, particularly Modelo, which is the U.S.'s No. 1-selling beer. Americans are also drinking less across the board, further reducing the company's sales.Amid such conditions, the alcohol producer and distributor has drawn a prominent investor in Warren Buffett's Berkshire ...