The “latest” symlink on ftp/ contains a trailing slash in the pickle file (I
presume, without having seen it), but the template tacks on a trailing slash as
well making the href "ftp/source/v9.6.2//". While this leads to the right page,
the “parent directory” link gets confused since it now links to the same page as
"ftp/source/v9.6.2/“.
Rather than changing the template code, the simplest fix seems to be to remove
the trailing slash in the data file?
cheers ./daniel