[XeTeX] xetex is using an .ttf.ignore-font

[Ulrike Fischer]

In my miktex 2.9. I have two version of asana-math:

J:/MiKTeX2.9/fonts/truetype/public/asana-math/Asana-Math.ttf.ignore
and
J:/MiKTeX2.9/fonts/opentype/public/asana-math/Asana-Math.otf

Now in the following example xetex uses the .ttf.ignore while
xdvipdfmx later uses the .otf which leads to a faulty pdf (a and
alpha are replaced by b and beta).

Obviously the point of the .ignore is that xetex ignores this font,
so I'm wondering why it doesn't work as wanted. 

Can the problem be reproduced on other systems as well?

\XeTeXtracingfonts= 1
\documentclass{scrartcl}

 \usepackage{fontspec}
 \usepackage{unicode-math}
 \setmathfont{Asana-Math}

\begin{document}
$a = ^^^^03b1 $
\end{document}
 


-- 
Ulrike Fischer