close.accepted behavior

Hello everyone,

I am migrating some working software to Qt6, and I encountered what I consider to be a bug.

The software has a popup window that becomes visible when the user tries to close the program. It asks the user if they're sure if they want to exit. This is the way it's being done:

onClosing: function(close){
        close.accepted = false
        confirmExitPopup.visible = true
    }

VPPopupWindow {
        id: confirmExitPopup
        title: "Exit Program?"
        text: "Are you sure you want to close?"
    }

Connections {
        target: confirmExitPopup
        function onButtonClicked(buttonState) {
            if(buttonState == "yes") {
                Qt.quit();
            }
            visible = false;
        }
    }

According to the Qt documentation, that is exactly the way it should be done:

However, the program now closes regardless of which button I click. Actually, if I click "no", the GUI crashes. Why is that? This feature was working fine in Qt5.