<mtext> formatting broken?

[Duncan Hothersall <dh@capdm.com>]

Hi all, quick query:

In presentational mathml, the <mtext> element used to set its contents
in roman font, with correct spacing for text. In recent and current
(Live) ConTeXt this seems to be broken, and the contents of <mtext>
elements come out in math italic with spaces ignored.

Test file showing problem on Live:

\usemodule[mathml]
\setuppagenumbering[state=stop]
\starttext
\startXMLdata
<math display="block">
<mrow><mml:mtext>vol</mml:mtext><mo>&times;—</mo><msqrt>
<mrow><mo>(</mo><mi>t</mi><mo>-</mo><mi>T</mi><mo>)</mo> </mrow>
</msqrt> </mrow> </math>\stopXMLdata
\stoptext

"vol" should be in roman, not math italic.

Is there a quick fix?

Thanks,

Duncan