Fixed regression on the change on change tracking (sic!)

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@2865 a333f486-631f-4898-b8df-5754b55c2be0

core/cmdbobject.class.inc.php

@@ -191,7 +191,7 @@ abstract class CMDBObject extends DBObject
 			$oAttDef = MetaModel::GetAttributeDef(get_class($this), $sAttCode);
 			if ($oAttDef->IsExternalField()) continue;
 			if ($oAttDef->IsLinkSet()) continue;
-			if ($oAttDef->GetTrackingLevel() == TRACKING_NONE) continue;
+			if ($oAttDef->GetTrackingLevel() == ATTRIBUTE_TRACKING_NONE) continue;
 
 			if (array_key_exists($sAttCode, $aOrigValues))
 			{