bug opening component fixed

refs 645

org.fortiss.af3.mira.ui/trunk/src/org/fortiss/af3/mira/ui/editor/externalRelation/ExternalRelationSection.java

@@ -442,7 +442,7 @@ public class ExternalRelationSection {
 				if(spec == null)
 					return;
 				IModelEditorBindingService.INSTANCE.openInEditor(spec.getSpecificationOf()
-						.eContainer().eContainer());
+						.eContainer());
 			}
 		});