Compose key broken when assigned to certain keys

[Tom Bachmann]

Binary package hint: gnome-control-center

Choosing certain keys to be the "Compose key" using keyboard preferences does not work.
On my computer, the Left and Right Win keys (command on my MacBook Pro) are set to "Super key" by default. Setting either one of them as Compose in gnome-keyboard-properties stops that key from acting as Super key, but does not cause it to function as Compose. The only response that I have noticed is that it changes the color of the frame of some active text entry areas, as if unselecting it. This occurs for multiple keyboard layouts (USA, Spain) and models (Generic 101-key PC, Apple MacBook/MacBook Pro (Intl)). The Compose functions correctly when other positions are chosen (Left Control, Caps Lock).
I am running natty with unity on a MacBook Pro 1,1 (2006 model). Changing this setting used to work in lucid and maverick without problems.
To recreate, open system settings/hardware/keyboard/layouts/options/compose key position and choose Left or Right Win. Notice the key stops functioning as a super key but cannot be used as compose (try any accented characters).

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-control-center 1:2.32.1-0ubuntu15
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Tue May 10 19:52:02 2011
ExecutablePath: /usr/bin/gnome-keyboard-properties
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)

[Tom Bachmann (tgbachmann)]

Sorry - posted this and then realised it is a duplicate. Marked as duplicate, invalid.