Attribute_lib update usages fix

process/Attribute_lib/process.js

@@ -1093,7 +1093,7 @@ AttributeUsageUtil.insertChildrenUsages = function (pAttributeId, pObjectType)
  */
 AttributeUsageUtil.updateChildrenUsages = function (pAttributeId, pOldObjectType, pNewObjectType)
 {
-    if (!pNewObjectType || !pAttributeId)
+    if (!pNewObjectType || !pAttributeId || !pOldObjectType)
         return;
     
     var table = "AB_ATTRIBUTEUSAGE";