Opening leader called to question the auction and the ability of N to continue bidding. There was no extraneous information during the auction. We were perplexed by S's 4 NT call (the pair play 1430), knowing what the answer had to be, unless S intended to continue the inquiry by bidding 5 NT or cue bidding. We concluded that S intended to sign off in 5♦. N had accurately described her hand as including extra values, but that did not give her the ability to continue to bid.
I'm less enamored with this ruling than the previous one. There was no extraneous information from partner, so there shouldn't be any damage to the opponents if N decides to continue to bid.