I believe that with the old ftp.plist information in the file the updater will not overwrite plist. I will be testing this theory when I get back in front of my server in the morning. Once I have tested this I will post again.
Would be interesting to know whether this "bug fix" fix does anything else than altering the ftp.plist file ?
If not, I would wait till the fix is made available by the software updater (still not appears there) or not installing it overall, since the .plist has been updated manually by myself.
Not sure... just noticed that (at Server Admin) the ftp log file seems not being updated, I also have no connections shown at the "connections" tab, although I currently logged in by ftp to this server. Is this an other bug or affiliated with this issue ?