"Move Component into Separate File" erases user code when leaving grouped properties in the original file

Code

QtQuick

Window {
    width: 800
    height: 600
    visible: true

    Text {
        text: "Hello"
        font {
            family: "Arial"
            pixelSize: 48
        }
    }
}

Steps to reproduce

1. Load the code above in a Qt Quick project
2. Right-click on the Text and select "Refactoring" > "Move Component into Separate File"
3. Check all of the property assignments, to leave them in the original file
4. Click "OK"

Unexpected outcomes
Before the refactor:

• The code preview in the dialog shows empty property bindings

After the refactor:

• The original file contains empty property bindings (invalid, broken code)
• The new file contains an empty "font" group (valid but pointless)