Index: TECH/Persistentie/GlobalNode.cls.xml
===================================================================
diff -u -r273 -r275
--- TECH/Persistentie/GlobalNode.cls.xml	(.../GlobalNode.cls.xml)	(revision 273)
+++ TECH/Persistentie/GlobalNode.cls.xml	(.../GlobalNode.cls.xml)	(revision 275)
@@ -46,14 +46,21 @@
 <FormalSpec>Index:%Integer</FormalSpec>
 <ReturnType>%String</ReturnType>
 <Implementation><![CDATA[
-	If (..DirtyPieces.IsDefined(Index)) {
+	If (..IsGewijzigdePiece(Index)) {
 		Quit ..DirtyPieces.GetAt(Index)
 	} Else {
 		Quit $Piece(..NodeDataString, ..Delimiter, Index)
 	}
 ]]></Implementation>
 </Method>
 
+<Method name="GeefOorspronkelijkePiece">
+<FormalSpec>Index:%Integer</FormalSpec>
+<ReturnType>%String</ReturnType>
+<Implementation><![CDATA[	Quit $Piece(..NodeDataString, ..Delimiter, Index)
+]]></Implementation>
+</Method>
+
 <Method name="ZetPiece">
 <FormalSpec>Index:%Integer,Waarde:%String</FormalSpec>
 <Implementation><![CDATA[
@@ -66,6 +73,12 @@
 ]]></Implementation>
 </Method>
 
+<Method name="IsGewijzigdePiece">
+<FormalSpec>Index:%String</FormalSpec>
+<Implementation><![CDATA[	Quit ..DirtyPieces.IsDefined(Index)
+]]></Implementation>
+</Method>
+
 <Method name="HeeftPiece">
 <Description>
 TODO: Hoort deze method hier thuis?</Description>