Please describe the problem:
If you have a launcher, and you remove it's icon, icon.png, GNOME starts, and
the panel gives you a warning. Ok, you find icon.png on the net, download it,
and put it back in its PATH, which is stored in the Launcher's settings. The
icon doesnt appear inmediatly again on the launcher (shouldnt that be FAM,
inotify stuff?), but it does appear if you go to it's Preferences.

But, here comes the problem, if you click Close, (seeing that the icon is read
by the Launcher's preference window), it does not apply the icon. I've tried a
"workaround",putting another icon, icon2.png, it works, then I tried resetting
my old icon, which is displayed fine in the preferences page, but it doesnt
update the launcher's icon.

In summation, if a launcher's icon is not found on startup, it displays the
"unknown icon" permanently, until next session. This should not happen 

Steps to reproduce:


Actual results:


Expected results:


Does this happen every time?


Other information: