(SFChronicle) - The Bucklin family’s relationship with Constellation Brands stretches back more than three decades. That’s how long Constellation — a global wine corporation expected to generate $7.33 billion in revenue this year, and owner of California wine brands like Robert Mondavi and Ravenswood — has bought grapes from Old Hill Ranch, the Bucklins’ 35-acre Sonoma Valley vineyard. But after this year’s wildfires, for the first time ever, Constellation rejected the Old Hill fruit.