Glade corrupting .glade files under certain conditions.
Submitted by Alistair Stray
Im recreating this problem consistently.
Create a top level window, create a horizontal pane, add a composite file chooser widget in one pane and a drawing area in the other. Save the file then close it. Reopen it and the drawing area has been replaced with a copy of the filechooser widget and the underlying xml is also changed on save.