dired-do-rename owner abuse

[Dan Jacobson]

dired-do-rename in
/usr/share/emacs/21.4/lisp:
-rw-r--r--  1 root 78791 2002-11-14 21:15 dired-aux.el
fails to keep the owner intact.

I am root. If I do
# mv /var/spool/exim4/input/some_files ~
the group and owner, Debian-exim, is preserved, but not if I use
dired-do-rename.

Therefore I cannot temporarily park messages elsewhere without making
them unpresentable to exim when I move them back.  Never mind, I will
try exim's freezing/thawing instead.

P.S., there is no error shown to the user when he executes
# emacs -nw -u /var/spool/exim4/input/ ~
(He meant
# emacs -nw -q /var/spool/exim4/input/ ~)