claude 9cdec11346 a cancelled call does not leave its conn for the next one (V-638)
The watchdog and the end of the call race by construction: a cancellation
landing as the reply arrives closes a conn the call had already finished
with, and c.conn still pointed at the closed socket.

It was survivable before this. A write to a closed socket is
errWriteLost, which re-dials and retries, and that retry is safe because
nothing was sent. So this buys one round trip, not a correctness fix, and
the new test says so rather than pretending to catch a break.
2026-08-06 23:09:05 +04:00
2026-07-03 00:32:48 +02:00
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