We were on a approach with full automation on and a go around was exexuted at 800 feet by pressing TOGA due to marginal flight path control (over 5 degree drop in pitch attitude and corresponding reduction in thrust to near idle). Subsequently, at 1000 feet after initiating the go around, an immediate windshear warning occurred. I said "press TOGA". He said, "no, it doesn't do anything to press it again". He didn't press it and the airplane flew through the windshear fine on autopilot with FMA THR|TOGA|TOGA.
All in the sim of course.