[issue40466] asyncio.ensure_future() breaks implicit exception chaining

[Chris Jerdonek]

Change by Chris Jerdonek <chris.jerdonek at gmail.com>:


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keywords: +patch
pull_requests: +19174
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/19858

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40466>
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