Spacing with Font Roboto

[Uwe Siart]

Alexander Krumeich <alexander.krumeich at gmail.com> writes:

> \documentclass[a4paper]{scrartcl}
> \usepackage{fontspec}
> \setmainfont{roboto}
>
> \begin{document}
> This is a test.
> \end{document}
>
> Following is a verbatim copy of the characters when I mark and copy
> them from my PDF viewer:
>
> T h is
> is
> a
> te s t.

>From the PDF produced by lualatex I get

T h i s i s a t e s t .

Interestingly, with xelatex I get

This is a test.

(as it should be)

-- 
Uwe