Hello, can anyone please verify and in case submit this bug?

Gnome panel > new panel
New panel > properties > right
Right panel > add to panel > windows list
Open any program until the window list is full (10ish)
All Gnome panels hang

Quite annoying as the applet makes all the panels hang, preventing access to everything including logout (must CTRL-ALT-BKSP). This looks like two bugs, applet AND panel.