Obvious stunt double of Wesley during son's near drowning

Watch right as Gil is pulling the kid up from the water; they show Bobby's shocked face, but it isn't Wesley, it's a stunt double. Especially obvious because the film is slowed down right at that moment to make it particularly noticeable. Surprising mistake considering what a veteran director Tony Scott was. Maybe he and Wesley had friction at some point on-set and this was his revenge.