Dunno but I would be interested.
I was in (pax) a flight from France...after entering the hold we were told by the Flight Crew we were diverting to Bournemouth, very shortly shortly thereafter we were told it was back to plan A and happily ( apart from the usual 10% of non-aviation understanding whinging numbskulls) we landed at LGW slightly late........
edited to add - must speed up my typing, thanks, Porco, for the further info