QImageReader not reporting corrupt JPEG images correctly

QImageReader does not report an error if the file is correct.

In my test, I truncate a JPEG file and get QImageReader to read it. There is a warning in debug, but the error status remains OK and  QImage with dimensions is returned.

I don't seem to be able to attach a zip of my test code (Jira could not attach the file as there was a missing token. Please try attaching the file again).