Rejected QMessageBox emits Accepted Signal

This issue is being transferred from https://bugreports.qt.io/browse/PYSIDE-2490

It occurred with Qt 6.5.3. I tried to make a minimal C++ example to reproduce the issue, but the issue did not occur for my C++ example (perhaps because I was using a different version of Qt - 6.2.4, which I can install on Ubuntu without compiling Qt). That example is attached.

Pasted below is my original message (the issue occurred on multiple operating systems):

If a QMessageBox is accepted by the user clicking a button, and then later "reject()" is called programmatically on the message box, the QMessageBox emits the "accepted()" signal instead of the "rejected()" signal.

In PySide2, this did not occur. This is new to PySide6.

Some sample code is pasted below. Note that when you click "Yes", "reject()" is called via QTimer, but it still emits "accepted()" instead of "rejected()".

from PySide6.QtCore import QTimer
from PySide6.QtWidgets import QApplication, QMessageBox

app = QApplication()

msg = 'Press "Yes"'
standard_buttons = QMessageBox.StandardButton
buttons = standard_buttons.Yes | standard_buttons.No
box = QMessageBox(QMessageBox.Question, 'Question', msg, buttons)

def accepted():
    print('Accepted!')

    # Now we will reject it later
    print('Now rejecting...')
    QTimer.singleShot(0, box.reject)

def rejected():
    print('Rejected!')

def finished():
    print('Finished!')

box.finished.connect(finished)
box.accepted.connect(accepted)
box.rejected.connect(rejected)

box.show()

app.exec()