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neuronori
751b30b730
WaitForPeer makes the client block before it sends its SYN, so the
server cannot yet know the client epoch and its first welcome arrives as
a broadcast (receiverEpoch=0). The same happens on every reconnect:
peerEpoch is reset to 0 and the peer re-announces via a broadcast
Send(nil). The strict requireTargetedPeer guard dropped those broadcasts
while unlatched, so peerEpoch never latched and WaitForPeer hung for its
whole timeout - the link connected and pinged but no data ever flowed
("ping works, no connection"), most visibly when a peer left and
reconnected. Accept a broadcast while unlatched (peerEpoch==0) and keep
rejecting third-party broadcasts once latched.