It forms a single vortex over each wing, coefficient of lift still increases with angle of attack. It's more like moving the wingtip vortex near to the nose of

It forms a single vortex over each wing, coefficient of lift still increases with angle of attack. It's more like moving the wingtip vortex near to the nose of the plane. There is a much higher 'true stall' angle of attack where flow separates and lift reduces.