QImage scaled with Qt::FastTransformation is broken

QImage::scaled funtion with Qt::FastTransformation doesn't scale the image rather It just cuts image to size.
When using Qt::SmoothTransformation the returned image is scaled as expected.

It works good on Windows:

QImage img("/Users/irfanomair/Desktop/mm.jpg","jpg");
QImage img2 = img.scaled(QSize(200,100), Qt::KeepAspectRatio, Qt::SmoothTransformation);
img2.save("/Users/irfanomair/Desktop/mmSmooth.jpg","jpg");
QImage img3 = img.scaled(QSize(200,100), Qt::KeepAspectRatio, Qt::FastTransformation);
img3.save("/Users/irfanomair/Desktop//mmFast.jpg","jpg");