gimp-2.2.15,2 crashes after gtk-2.10.13 upgrade

[cpghost]

After upgrading gtk-2.10.12_2 to gtk-2.10.13, gimp keeps crashing
with the following error message:

The program 'gimp' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
  (Details: serial 57475 error_code 3 request_code 39 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

(script-fu:80640): LibGimpBase-WARNING **: script-fu: wire_read(): error

This can be easily reproduced by starting gimp, creating a new
window, and trying to draw something into it: immediate crash
with the error message above. serial # can chage, but everything
else remains the same.

Nothing else except the gtk upgrade changed in-between port
trees as of 2007-06-12 and 2007-06-14, including the version
of gimp (gimp-2.2.15,2, gimp-app-2.2.15_1,1), which didn't
change either. The only change was gtk-2.10.12_2 to gtk-2.10.13.

Incidentally, the jumpy gtk savebox doesn't repeatedly grow and shrink
horizontally anymore under fluxbox now: the gtk upgrade seems to have
fixed this; but now gimp is borked.

Can anyone else confirm this bug, perhaps with other Gtk2 apps?

Thanks,
-cpghost.

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