I think all planes will have the same happen to their TOCW system if the plane thinks it is airborne. The TOCW system will cease to work. Dirrefent aircraft will have different ways of telling you directly or indirectly if it is.
On the MD80 it will be the ones mentioned in my previous post. On the A320 it may be that you get presented wtih the landing config list instead of the TO config, maybe accompanied be something more directly.
In short, thinking it is in airborne mode disables all planes' TO warning system. That's more than logical I think.
Xander