MetaModel: when an ext key on a Link is discarded, then discard the corresponding linkset attributes

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@2406 a333f486-631f-4898-b8df-5754b55c2be0

core/metamodel.class.php

@@ -1753,6 +1753,11 @@ abstract class MetaModel
 				self::$m_aIgnoredAttributes[$sTargetClass][$oAtt->GetCode()] = $sRemoteClass;
 				return;
 			}
+			elseif ($oAtt->IsIndirect() && !self::IsValidAttCode($sRemoteClass, $oAtt->GetExtKeyToRemote()))
+			{
+				self::$m_aIgnoredAttributes[$sTargetClass][$oAtt->GetCode()] = $sRemoteClass;
+				return;
+			}
 		}
 		elseif($oAtt->IsExternalKey())
 		{