Notifications are no longer using append or replace

Binary package hint: empathy

Empathy has gone back to showing a single notification for each new chat message. This is a regression from the chat experience we previously enjoyed in Ubuntu, where the chat client used notify-osd's append and replace hints. Please see the notify-osd design specification:
https://wiki.ubuntu.com/NotifyOSD#Merging notifications

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: empathy 2.34.0-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Sun Jun 5 18:36:42 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
 LANGUAGE=en_CA:en
 LANG=en_CA.UTF-8
 SHELL=/bin/zsh
SourcePackage: empathy
UpgradeStatus: No upgrade log present (probably fresh install)