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+2012-04-22  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tkBind.c (ExpandPercents): [Bug 3520202]: Ensure that the
+	%k, %K and %N substitutions use dummy tokens with <MouseWheel> events
+	and that the %D subsitution is a dummy with <Key>/<KeyRelease>. This
+	was causing significant indigestion (and a read of goodness knows what
+	memory) to Tkinter/Python because of the way they map events between
+	languages.
+
 2012-04-20  Jan Nijtmans  <nijtmans@users.sf.net>
 
 	* generic/tk.tcl: Use vroot size in stead of screen size for