Comment 10 for bug 174720

I can confirm. I encountered the black rectangle behaviour while trying to fix this bug. It also appears that the color is set on groups only and the paths inherit it. When it comes to the disappear-on-move issue I'm puzzled. So this bug is not fixed yet. I think the better way would be to rewrite the whole style.* mess as described in the roadmap instead of trying to prevent it from falling apart.