[NTG-context] problem loading attachments (important for my work)

[Akira Kakuto]

> Could anyone confirm the issue in Windows?

Here, in both of examples below, the file is successfully
attached in Windows:


\setupinteraction[state=start]
\setupinteractionscreen[option=attachment]
\setuppapersize[A5, landscape]
\setuppagenumbering[location=]
\starttext
File: \attachment[file={c:/usr/work/examples/pic.pdf}]
\stoptext

%
% without braces
%
\setupinteraction[state=start]
\setupinteractionscreen[option=attachment]
\setuppapersize[A5, landscape]
\setuppagenumbering[location=]
\starttext
File: \attachment[file=c:/usr/work/examples/pic.pdf]
\stoptext

Best,
Akira