Index: TECH/ObjectUtils/impl/WaardenKopieerder.cls.xml
===================================================================
diff -u -r766 -r769
--- TECH/ObjectUtils/impl/WaardenKopieerder.cls.xml	(.../WaardenKopieerder.cls.xml)	(revision 766)
+++ TECH/ObjectUtils/impl/WaardenKopieerder.cls.xml	(.../WaardenKopieerder.cls.xml)	(revision 769)
@@ -60,11 +60,13 @@
 		if ##class(TECH.ClassUtils).IsDataType($listget(PropertyInfo,$$$fldClassName)) {
 			if $length(PropertyCollection) {
 				if PropertyValue.Count() = 0 || ( flagOverwrite ){
-					if PropertyCollection = "list" set PropertyValue = ##class(TECH.ListUtils).CopyListOfDataTypes(PropertyValueDefaults)
-					if PropertyCollection = "array" set PropertyValue = ##class(TECH.ListUtils).CopyArrayOfDataTypes(PropertyValueDefaults)
+					If (PropertyValueDefaults.Count()>0) {
+						if PropertyCollection = "list" set PropertyValue = ##class(TECH.ListUtils).CopyListOfDataTypes(PropertyValueDefaults)
+						if PropertyCollection = "array" set PropertyValue = ##class(TECH.ListUtils).CopyArrayOfDataTypes(PropertyValueDefaults)
+					}
 				} 
 			} elseif ( PropertyValue = "" ) || ( flagOverwrite ) {
-				set PropertyValue = PropertyValueDefaults
+				set:(PropertyValueDefaults '= "") PropertyValue = PropertyValueDefaults
 			} 
 			
 			If $$$Not(##class(TECH.ListUtils).Contains(..NietTeKopierenProperties,PropertyName)) {