NFS failure [rt.cpan.org #82720]

[xdg]

https://rt.cpan.org/Ticket/Display.html?id=82720

This is a big restriction:

"Finally, on NFS file systems the link count of the file handle does not always go to zero 
immediately after unlinking. Currently, this command is expected to fail on NFS disks."

When will it be fixed?  It causes many (most?) CPAN modules to fail on their make tst.