Importing PySide6 adds extraneous handlers to Python logging module

When importing PySide6 into a Python script that has logging set up with the default `logging` module, PySide6 adds an extra handler to the root logger.

This requires the following code in order to get the normal behavior from the logger:

# Create the logger
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)

# Remove PySide6 (or other) handlers
for h in logger.handlers:
    logger.removeHandler(h)

I have confirmed this issue by running clean scripts with nothing in them but logging code. They work as intended until PySide6 is imported.

Please see the following posts for details:

• Stackoverflow : https://stackoverflow.com/questions/68772470/cant-get-my-head-around-logging-in-multiple-modules (see comments)
• Qt Forum : https://forum.qt.io/topic/129370/pyside6-disables-logging-debug-level/4

Thanks.