File-roller is unable to open files within a ZIP archive if the file within has a filename starting with "@". E.g.

$> echo hello > @text.txt
$> zip text.zip @text.txt
$> file-roller text.zip

Then double-clicking on the @text.txt file to open it will cause a "unable to open file" error or the like.

This is because 7zip uses '@' to specify a 'filelist' (used e.g. when more than 10 files selected to open/extract; ref to propListFromFile); so the command cannot pass the filename as it is used to do.

Patch following.