Description of problem:
Clicking the Maximize button on xemacs's window causes xemacs to go into a loop
refreshing its window.  Subsequently clicking Unmaximize causes the window to
fill the screen, but in unmaximized mode (as if it had been manually resized to
fill the screen.

Version-Release number of selected component (if applicable):
xemacs-21.4.17-3

How reproducible:
Always

Steps to Reproduce:
1. Open an xemacs window in GNOME
2. Click the Maximize Window button on the title bar.
3. Click the Unmaximize Window button on the title bar.
  
Actual results:
When maximizing, the window flickers uncontrollably and CPU usage jumps to 100%.
When unmaximizing, the window changes to unmaximized mode but fills the screen
.
Expected results:
When maximizing, the window should fill the screen but not flicker.
When unmaximizing, the window should return to its original size.

Additional info: