greek characters in 'mi' with mathvariant="normal" are italicized when using the svg renderer

Created by: svacha

Testing the following MathML content on the MathJax demo page (http://www.mathjax.org/demos/ ):

<math xmlns="http://www.w3.org/1998/Math/MathML">
<mi>θ</mi>
<mi mathvariant="normal">θ</mi>
<mi mathvariant="italic">θ</mi>
<mtext>θ</mtext>
<mi mathvariant="sans-serif">θ</mi>
<mi mathvariant="sans-serif-italic">θ</mi>
</math>

Choosing the SVG math renderer, there is no difference between the display of the first four thetas (all as italics), but I would expect the second and fourth to be not italics. The HTML-CSS renderer does show the second and fourth as not italics.

Does the SVG renderer not have the glyphs for the non-italicized greek characters?

Tested on Chrome Version 29.0.1547.76.