Index: CKEditor/trunk/_source/plugins/tabletools/plugin.js
===================================================================
--- CKEditor/trunk/_source/plugins/tabletools/plugin.js	(revision 7229)
+++ CKEditor/trunk/_source/plugins/tabletools/plugin.js	(revision 7230)
@@ -136,5 +136,5 @@
 
 		var newRow = doc.createElement( 'tr' );
-		for ( var i = 0; i < width; i++ )
+		for ( var i = 0; cloneRow[ i ] && i < width; i++ )
 		{
 			var cell;