Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
We're using ImageMagick 6.2.6 and the conversion worked fine. The photometric interpretation is still min-is-black but the image does not have inverted colors. We could add an option to force min-is-white photometric interpretation if that is desirable.