Qt ComboBox Detached from Application Window on Wayland.

Description:

When using a Qt ComboBox within a widget application on ubuntu with the Wayland and Qt5.15.x, the ComboBox is not grouped with the application window. Moving the application window results in the ComboBox becoming detached and remaining fixed at its initial location on the screen.

Steps to Reproduce:

1. Create a new Widget project and add the code Given below to main.cpp
2. Build and Run the Application
3. Open Combo box 
4. Try to drag Application window 

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    // Create a QWidget to hold the combo box
    QWidget window;
    window.setWindowTitle("Qt Combo Box Example");
    window.setGeometry(100, 100, 300, 200);
    // Create a combo box
    QComboBox comboBox(&window);
    // Add items to the combo box
    comboBox.addItem("Option 1");
    comboBox.addItem("Option 2");
    comboBox.addItem("Option 3");
    window.show();
    return app.exec();
} 

Expected Behavior:

The ComboBox should move together with the application window, maintaining a consistent position relative to the window.

Actual Behavior:

The ComboBox becomes detached from the application window and remains at its initial position on the screen when the application window is moved.

Check Attached Video for reference :

Additional Information:

The issue is only reproducible on  Ubuntu using the Wayland. It does not occur on Xorg display servers.
The ComboBox should be correctly attached to the application window, ensuring a consistent user experience.

Environment:

•  Operating System: Ubuntu 20.04, 22.04
•  Display Server: Wayland
•  Application Type: Widget-based
•  Gnome version: 42.9