New GitHub issue #94182 from graingert:<br>

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as of https://github.com/python/cpython/issues/93896 asyncio.Runner no longer calls `asyncio.set_event_loop()` and so the PidfdChildWatcher is never activated

this is unfortunate because it could run `asyncio.get_running_loop().add_reader` instead
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<a href="https://github.com/python/cpython/issues/94182">View on GitHub</a>
<p>Labels: type-bug</p>
<p>Assignee: </p>