The Rocket City Trash Pandas finally poured some cold water on Jacob Gonzalez’s sizzling start to Double-A. But they didn’t cool him off completely. Gonzalez’s Birmingham Barons had been undefeated through seven games following his promotion last week. However, they lost to Rocket City, 5-3, in the first of a Wednesday doubleheader. Gonzalez was 0 for 3 with a walk and run scored. Gonzalez had been on an absolute tear as the team’s two-hole hitter. Cleaning him up has been his former Ole Miss teammate, Tim Elko. Birmingham previously swept six games at Biloxi, and Gonzalez and Elko had more co…