[junyi_zhu]

I met this hand twice:
the bidding went:
1H 1S
2C 2N
3S:
the explanation shows 14-18, with 3 spades,
indeed, gib shows 1-5-3-4 shape and about 12-13 HCP.
In one hand, I bid 4S only found myself in a 5-1 fit. In the other hand,
I bid 3NT and down one. For both situations, it's a clear pass over 2NT
and 3S should be what it means IMO.
So I think there must be a bug in the code.