Still smarting from borderline #1, this was the next deal. Another borderline one, so perhaps just for interest rather than "reporting" purposes.
Once North doubles there is no winning action available to South, assuming that 5H gets whacked, although (the only) two pairs who managed to get into 5H survived undoubled for a huge score.
Of possible interest is how the earlier version of GIB handled the hand after the same decisions by South. North raised 3H to 4H, and then passed out East's 4S bid.
I confess that X of 2S by East is not a call that I would have found, but that is a system thing I guess. Not sure that I would have bid 1S either, but the earlier version of GIB did also.