QImage / QImageReader: lost QColorSpace during rotation

    for (int i = 0; i < 2; ++i) {
        QImage qi(16, 16, QImage::Format_ARGB32);
        qi.setColorSpace(QColorSpace(QColorSpace::AdobeRgb));
        if (i)
            qi = qi.transformed(QTransform().rotate(90));
        qDebug() << qi.colorSpace().isValid() << qi.colorSpace().description();
    }

    for (int i = 0; i < 2; ++i) {
        QImageReader r("dice_r.tif");
        r.setAutoTransform(i ? true : false);
        auto qi = r.read();
        qDebug() << qi.colorSpace().isValid() << qi.colorSpace().description();
    }