QImageReader fails to set the devicePixelRatio for @3x images and bigger

I tried to load an image using the naming scheme form the documentation, but I found, that this doesn't work with @3x images: looks like the devicePixelRatio isn't set properly.

I found in the source code, that the QImageReader can only recognize @2x in an image name, unlike the QIcon which has generic code to handle this name suffix.