The list of keys in dconf-editor shrinks to an unusable size when some items are selected

[Andrew]

When apps/indicators/sound/show-notify-osd-on-scroll is selected in dconf-editor, the entire list of keys shrinks to a height shorter than one list item. A screencast is attached.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: dconf-tools 0.10.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Mon Oct 24 11:38:09 2011
ExecutablePath: /usr/bin/dconf-editor
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
SourcePackage: d-conf
UpgradeStatus: Upgraded to oneiric on 2011-09-23 (31 days ago)
XsessionErrors:
 (nautilus:1745): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
 (nautilus:1745): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed