Ticket [8b317b4a63]: Added code to the 8.4+ implementations of GLOBF
and GLOBD to guard ourselves against VFS packages mishandling the
-types option of [glob]. vfs::zip is an example.  This mishandling
causes glob to return the same data for the two calls with "-types x"
and "-types {hidden x}", generating lists with duplicate entries. We
now generally de-duplicate the result ourselves. Bumped the package
version to 1.14.6. Thanks to <eugene.mindrov@gmail.com> for the
investigation identifying this problem.
Merged fix for bug [8b317b4a63], made it official.