Files copied from AFP share point are unwriteable by client

This is the same issue as: http://discussions.apple.com/thread.jspa?messageID=8044984
Has anyone found a fix yet? Basically, when copying files from an AFP server, Leopard is not having the file inherit the permissions of the parent folder. It is inheriting the permissions of the file within /Volumes.
I am accessing an AFP share point on a server that has files that are 644 (readable by everyone, but only writable by the owner). I am not the owner. When viewing the AFP volume on my client within /Volumes/whatever the permissions appear to be 400 (unwriteable by the owner, no access to anyone else). When I copy the file over to desktop, the permissions remain as 400 when they should obviously be 600.
What does this mean? Even though I am NOW the owner, and it is on MY desktop, I am unable to write to the file unless I chmod it. Very, very annoying and this behavior is unique to Leopard. Tiger does not mangle the permissions.
The server is ubuntu-8.10-server running Netatalk.
The test clients are Leopard 10.5.5 and Tiger 10.4.11
On the server:
$ pwd
/srv/www
$ ls -l
-rw-r--r-- 1 www-data www-data 1024 2008-11-23 23:29 test.doc
On the Leopard client:
$ pwd
/Volumes/www
$ ls -l
-r-x------@ 1 sauce staff 1024 Nov 23 23:29 test.doc
$ cp test.doc ~/Desktop
$ ls -l ~/Desktop/test.doc
-r-x------@ 1 sauce staff 1024 Dec 7 00:21 /Users/sauce/Desktop/test.doc
Message was edited by: iSauce

I don't believe this is a problem of leopard in general. i can not reproduce this behavior with any of my afp shares. no matter how i connect (as an owner or as a guest) after I copy something to the desktop it gets standard 644 (not 600) permissions.

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