[XeTeX] OldStyle Numbers not changeable to Lining Numbers

[Tobias Schoel]

Hi,

is this the desired behaviour or a bug:

\defaultfeatures{Numbers=OldStyle} gives medieval numbers, 
\addfontfeature{Numbers=Lining} afterwards keeps medieval numbers.

Minimal Example:

\documentclass{article}
\usepackage{fontspec}
\defaultfontfeatures{Numbers={OldStyle}}
\setmainfont[Mapping=tex-text]{Linux Libertine O}
\begin{document}
A0123456789

\addfontfeatures{Numbers={Lining}}A0123456789
\end{document}

XeLaTeX from current TeX-Live 2010, Linux Libertine v 4.7.5

bye

Toscho