[issue20367] concurrent.futures.as_completed() fails when given duplicate Futures

[Roundup Robot]

Roundup Robot added the comment:

New changeset 1dac8c954488 by Victor Stinner in branch 'default':
Issue #20367: Add Glenn Langford to Misc/ACKS
http://hg.python.org/cpython/rev/1dac8c954488

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20367>
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