cvs diff -kk still fails without apparent reason

[Roland Illig]

http://lists.gnu.org/archive/html/bug-cvs/2005-08/msg00063.html

As noted in that mail, the difference between "cvs diff" and "cvs diff 
-kk" is more than just keyword expansion. Where does that difference 
come from? Here is a guide to reproduce this:

cvs -d /tmp/cvsroot init
mkdir /tmp/cvsroot/test
cvs -d localhost:/tmp/cvsroot co test
cd test
echo "foo" > .file
cvs add .file
cvs commit -m "added file" .file
cvs diff -kk .file

With a local CVS server, it does not behave this way. Neither with 
"file" instead of ".file".

Roland