sessionscoped bean的会话清理后,变量值未重置

<h:form>
<h:commandButton value="Buy" styleClass="button-buy" actionListener="#{basketCount.incrementBasketCount}" immediate="true">
</h:commandButton>
</h:form>

jsf2部分:

 <li class="basket">    
  #{basketCount.basketCount}
 </li>

面配置:

 <managed-bean>
  <managed-bean-name>basketCount</managed-bean-name>
  <managed-bean-class>main.BasketCount</managed-bean-class>
  <managed-bean-scope>session</managed-bean-scope>
 </managed-bean>

简单的动作监听bean:

package main;

import java.io.Serializable;

    public class BasketCount implements Serializable {

     private static final long serialVersionUID = -4576074045587545642L;

     int inBasketCount = 0;

     public void incrementBasketCount(javax.faces.event.ActionEvent event) {
      inBasketCount++;
     }

     public int getBasketCount() {
      return inBasketCount;
     }

    }

用例:
一 点击“购买”按钮
二 篮子内容递增
三。 在FF中单击Shift Ctrl Del(清除cookie和缓存)并刷新
四 篮子的柜台保持不变

据我所知,会话范围指定,这个计数器(步骤 二 )将仅在会话范围内递增,并且在Cookie之后,应重置缓存清理?

问题是,它没有。