Comment 2 for bug 1036884

> Does it ever make sense for "fill" to be set on a 1D object? I don't think so, and the code should probably not allow it.

Since the SVG specs allow it, Inkscape must allow it too. There's nothing wrong or invalid with the SVG file, and it renders correctly with Inkscape, Firefox and Batik. I'd say it's up to the export code to handle that as needed.