Japanese Halfwidth Katakana Voiced Sound Mark concatenate with other char

import QtQuick 2.15
import QtQuick.Controls 2.15

ApplicationWindow{
    width: 500
    height: 500
    visible: true

    Column {
        TextEdit {
            id: test
            textFormat: Text.RichText
            text: 'A\uFF9Eｶﾞｷﾞｸﾞ'
            font.pixelSize: 40
        }
        Button {
            text: "set cursorPosition to 1"
            onClicked: {
                test.cursorPosition = 1
                test.forceActiveFocus()
            }
        }
    }
}