"freezing" gitk geometry

Hi,

now I've installed 1.5.0, I've discovered gitk is still the visualisation tool for graphically browsing history. I think gitk is a good program, but one thing I'd like to be able to change is to have a way to force gitk not to update its saved internal geometry (position of internal dividers, etc) when it exits. I tried making ~/.gitk not writable but that didn't work. I don't know tcl: is there a simple way to prevent gitk updating this upon quitting?

(Why do I want this? A tiling window manager often changes the size of clients automatically to fit things onto the screen as new windows appear. Sometimes this results in windows being made quite small. If I quit gitk without expanding it up to full size "just to get the geometry right" it stores a crushed geometry which gets restored when it's restarted regardless of the actual window space currently available.)