Generates an SVG that crashes Inkscape if the symbolic used is an Inkscape SVG.
Apologies for the weird title, but that's literally what happens. If the symbolic used is not a plain SVG, but an Inkscape SVG, when opening the generated SVG file, Inkscape crashes with an "Inkscape encountered an internal error and will close now" message.
Since I don't know many technical aspects of SVG, I don't know if the generated SVG is valid or invalid. Maybe the SVG is valid and this just exposed a bug in Inkscape.