OMG, that's so dumb... inkscape at it's best!
In the SVG tag it has viewBox="0 0
595,2756 841,8898", which is so incredibly stupid and inconsistent. It should be viewBox="0 0
595.2756 841.8898".
I've hooked up a little protection now, making the next update work better for you, too!
You can, however, already manually change the "," to "." like I wrote up there. It should work, too.