Make waking after a future completes propagates to the next future #2064
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In our
wakers
, if we firstnotify
a future, which is thenpoll
ed complete, and thennotify
the same waker again before a new future is fetched, that new future will be marked as non-complete initially and wait for a thirdnotify
.The fix is luckily rather trivial, when we
notify
a future, if it is completed immediately, simply wipe the future state so that we look at the pending-notify flag when we generate the next future.