Urgency hint doesn't disappear when focusing window

Binary package hint: unity

To reproduce:

1) Open update-manager and some other app (nautilus works).
2) Check for updates, then focus the other app.
3) If updates are available, update-manager will set the blue urgency hint because it is not the focused window
4) Click on update-manager to focus it.

Expected: once focused, the urgency hint disappears.
Instead: the urgency hint stays.

Might be compiz, not unity, but I don't know enough to be able to tell.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 3.8.16-0ubuntu2
ProcVersionSignature: Ubuntu 3.0-1.2-generic 3.0.0-rc3
Uname: Linux 3.0-1-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,switcher,decor,grid,regex,gnomecompat,move,place,imgpng,resize,obs,session,mousepoll,animation,wall,wobbly,scale,workarounds,resizeinfo,expo,unityshell]
Date: Sat Jun 18 11:28:18 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 LANG=en_CA.utf8
 LC_MESSAGES=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to oneiric on 2011-05-28 (21 days ago)