Make sure argumentsAdded flag is set correctly.

core/src/main/java/org/springframework/security/access/expression/support/MethodSecurityEvaluationContext.java

@@ -46,6 +46,7 @@ class MethodSecurityEvaluationContext extends StandardEvaluationContext {
 
         if (!argumentsAdded) {
             addArgumentsAsVariables();
+            argumentsAdded = true;
         }
 
         return super.lookupVariable(name);