I've felt mild surges in my F25, but nothing near as dramatic as others are experiencing, which leads me to believe mine is unrelated.
Mine always happens towards the very end of a stop, probably during the 3-2 or 2-1 downshift. If anyone has driven a manual and been a little too enthusiastic with a heel-toe rev-matched downshift, it feels almost exactly like that kind of a surge... completely absorbed in less than half a second, and I've never felt worried about the ability to come to a full stop. It feels a bit weird and disturbing though. Not sure whether to have it looked at (especially since it's impossible to reproduce on demand).