When running QtAsyncio.run(), the global asyncio event loop policy is set. Currently, the policy setting is kept to QtAsyncio's policy even after QtAsyncio.run() returns, which can lead to unexpected behavior (e.g., if executing asyncio.run() afterwards expecting the default event loop to be used). Reset the event loop policy to the default one after returning from QtAsyncio.run() to mitigate this. Pick-to: 6.6 Task-number: PYSIDE-769 Change-Id: Ifd31c0924317ba09c53ded165c9a5d6f1e2dc808 Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>