The image claims to be 1260.1801 x 1533.65 pixels, and is rendered there to 492x599.
This ratio appears to be consistent.

daniel wrote:

But the content of the image is rendered too wide and thus cut at the sides. The
center dot is eliptical while it shouldn't be (see
http://upload.wikimedia.org/wikipedia/en/2/23/Commons-logo-Anaglyph.svg).

daniel wrote:

It seems that the reason for the aforementioned behaviour were some
sodipodi/inkscape tags in the sgv file, which caused the file to render
correctly in inkscape and ksvg, but had rsvg render the picture with a wrong
aspect ratio causing clipping at the sides. My guess: it was a toplevel
"transform" attribute. I removed it by hand and reuploaded. Works fine now.