bug#6346: 23.1; set-process-datagram-address failure?

[Jason Feng]

I was trying the following elisp, and ended up with an unexpected result...

(setq udp-cl
      (make-network-process
       :name "baz" :buffer nil
       :service 53 :host "64.68.192.10"
       :family 'ipv4 :filter (lambda (p s)
                               (print s))
       :type 'datagram
       :coding 'binary))

(process-datagram-address udp-cl)
 => [64 68 192 10 53]
(set-process-datagram-address udp-cl (process-datagram-address udp-cl))
 => [64 68 192 10 53]
(process-datagram-address udp-cl)
 => [0 0 0 0 53]

Can anybody else duplicate this?

In GNU Emacs 23.1.1 (i486-pc-linux-gnu, GTK+ Version 2.18.3)
 of 2010-03-25 on palmer, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.10604000
configured using `configure  '--build=i486-linux-gnu' '--host=i486-linux-gnu' 
'--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' 
'--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.1/leim'
 '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 
'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g 
-O2' 'LDFLAGS=-g' 'CPPFLAGS=''