Switching user followed by logout produces a screen lock where the mouse can't click

Binary package hint: indicator-session

Problem:
I can produce a "locked screen" where the mouse is unusable.

Use case:
User A is logged in.
User activates "Switch user" in the indicator applet.
User B logs in.
User B logs out.
This produces the same screen as "Lock screen" would, except that mouse clicking has no effect. Tab can still be used to select other buttons the default one. And the mouse pointer is visible and movable.
If I instead use "lock screen" in the indicator applet I arrive at a screen that looks the same, but I can use the mouse as expected.

This is Ubuntu 9.10 ilpa, and I also think I saw it in the normal desktop edition.

ProblemType: Bug
Architecture: lpia
Date: Tue Nov 10 21:25:59 2009
DistroRelease: Ubuntu 9.10
Package: indicator-session 0.1.7-0ubuntu3
ProcEnviron:
 LANGUAGE=sv_SE.UTF-8
 LANG=sv_SE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-lpia
SourcePackage: indicator-session
Uname: Linux 2.6.31-14-lpia i686