Please describe the problem:
When a window changes its icon, the window list panel applet updates with the new icon, but the icons in the window decoration and the alt+tab window switcher display the old one.

Restarting metacity fixes the inconsistency and displays the same icon everywhere.


Steps to reproduce:
There are many ways to reproduce this. Here are several:
1) Open up a new white canvas image in GIMP. The icon in the window list changes to a white rectangle, but the window decoration stays as the gimp logo. Fill the white canvas with black to see the icon in the window list change. Still no change to the window decoration icon. Kill and run metacity again to see the icon change.

2) Open a chat window in Pidgin. Ask the person to change status to "Away." Notice the window's icon change in the window list, and not in the decoration.

3) Start OpenOffice and open a document. The icon in the window list should change to a document, while the icon in the decorator will be the OpenOffice logo.

Actual results:
The window decoration icon does not change.

Expected results:
It should change.

Does this happen every time?
Yes.

Other information:
This is a regression caused by r4090 from bug 549886.