[Cooker] gtk tabs not clearing

[Garrick Staples]

Using libgtk+1.2-1.2.10-25mdk.

Has anyone else noticed that gtk apps that use tabs
(multi-gnome-terminal and galeon are the only two I know of) don't clear
away a tab that you've closed?  It's merely failing to redraw that
section of the screen.  If you shade/unshade or momentarily cover it
with another window (or anything triggers an X redraw), it will be
correct again.  This is a recent bug, I don't think it was present in
beta3.  It's present in beta4 through current cooker.