A request that reached no one is asked again by mesh-sdk's busretry only when
it can see the bus's own error; the node-engine's ask dropped it, so the seat
list's first read, which fell into its holder's re-serve, was never asked
again (issue 1966).
Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ