[Reg 6.3.2 -> 6.4.x] Virtual keyboard layout is broken

#include <QApplication>
#include <QPlainTextEdit>

int main(int argc, char *argv[])
{
    qputenv("QT_IM_MODULE", QByteArray("qtvirtualkeyboard"));

    QApplication a(argc, argv);
    QPlainTextEdit window;
    window.show();

    return a.exec();
}