Raster native widget fail to draw when there is a quick widget sibling

#include <QtWidgets/QApplication>
#include <QtWidgets/QWidget>
#include <QtGUI/QPainter>
#include <QtOpenGLWidgets/QOpenGLWidget>

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

    // tlw, by default it's Raster.
    QWidget tlw;
    tlw.resize(640, 480);

    // adding opengl/qml/webengine will change tlw to be opengl-based
    QOpenGLWidget quick(&tlw); // Or webengine
    quick.setGeometry(0, 0, 640, 240);

    // a Raster native sibling
    QWidget raster(&tlw);
    raster.setGeometry(0, 240, 640, 240);
    raster.setStyleSheet("QWidget { background-color: yellow; }");

    // Error: QOpenGLContext::makeCurrent() called with non-opengl surface after this line.
    raster.winId();

    // Now we have the following window hierarchy:
    //
    //   tlw: OpenGL, native, usesRhiFlush=true
    //    |
    //    +-- quick: texture-based, alien
    //    |
    //    +-- raster: Raster, native
    //
    // The raster native widget will fail to flush to its native window. Because
    // QWidgetRepaintManager::flush() only checks tlw's usesRhiFlush flag. But
    // not all its child windows are Rhi widget. In this case, one of the child
    // is raster window but rhi flush is used.
    //

    tlw.show();
    return app.exec();
}

QOpenGLContext::makeCurrent() called with non-opengl surface 0x248220072d0
QRhiGles2: Failed to make context current. Expect bad things to happen.