blackshoe, on 2012-May-03, 11:08, said:
In the Walsh relay case, I agree with Stef — alert the 2♦ bid. The alternative is to announce "transfer", and then alert responder's subsequent 2♠ bid, which is probably also correct, since at the time 2♦ is bid, opener assumes partner has hearts. Some will no doubt argue, though, that the latter approach is not "full disclosure".
Indeed, if it doesn't necessarily have hearts (by agreement), then it doesn't show hearts, even if responder will always make a bid catering for hearts being the option.
That would be like describing 2C (weak 2 in diamonds or an Acol 2C bid) as 'diamonds' because responder will always bid 2D in case it was a weak 2 in diamonds.