cannot use Qt::AA_NativeWindows and Qt::WA_TranslucentBackground together (was regression: QDeclarativeView won't show as subwindow)

#include <QApplication>
#include <QWidget>

#include <QtDeclarative/QDeclarativeView>

//////////////////////////////////////////////////////////////////////////////
int main(int argc, char* argv[])
{
  QApplication app(argc, argv);

  QApplication::setAttribute(Qt::AA_NativeWindows);

  QWidget widget(0, Qt::FramelessWindowHint);

  widget.setStyleSheet("background:\"red\"");

  QWidget* subWidget(new QDeclarativeView(&widget));

  subWidget->setWindowFlags(Qt::FramelessWindowHint | Qt::Dialog);

  subWidget->setAttribute(Qt::WA_TranslucentBackground);

  subWidget->setStyleSheet("background:\"green\"");

  widget.show();

  subWidget->show();

  subWidget->setGeometry(QRect(widget.pos(), widget.size()));

  subWidget->setAutoFillBackground(true);

  return app.exec();
}

QXcbConnection: XCB error: 8 (BadMatch), sequence: 366, resource id: 81788949, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 373, resource id: 81788949, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 380, resource id: 81788949, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 400, resource id: 81788956, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 413, resource id: 81788956, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 423, resource id: 81788956, major code: 130 (Unknown), minor code: 3