QProxyStyle crash app !

Hey

This code will cause crash>

import sys

from PySide6.QtWidgets import QApplication, QProxyStyle, QWidget
app = QApplication()

class MyProxyStyle(QProxyStyle):
    def __init__(self):
        QProxyStyle.__init__(self)
        self.setBaseStyle(QApplication.style())
s =MyProxyStyle()
s.deleteLater()
w =QWidget()
w.show()
sys.exit(app.exec_())

Can any1 help out? 

It could be related to > https://bugreports.qt.io/browse/PYSIDE-922

UPDATE 

I've made a fully working example showing the issue.  Please have look at styleVersionTest_01.py. 

There are 6 buttons, each of them creates a tree view with a different QProxyStyle. The Inherited Style takes app.style() as base style while default() style does not. As you can see the default style has a different style to the currently applied app style. Thus it does not inherit from the app by default as it should. When it comes to deletion after you add the 3 views, go on and delete the 3 vies and you will get a crash.