plone - plone.caching 所有 304 的拦截错误

Question

我最近开始在我的视图中添加 plone.caching 规则集声明：

<cache:ruleset
    for=".views.MyContentTypeView"
    ruleset="plone.content.itemView"
    />

我已经开始在我的开发站点的日志中看到这些：

2012-10-23 14:48:02 ERROR Zope.SiteErrorLog 1351000082.330.867850813917 http://localhost:12311/my_content_type/@@landing
Traceback (innermost last):
  Module ZPublisher.Publish, line 117, in publish
  Module zope.event, line 31, in notify
  Module zope.component.event, line 24, in dispatch
  Module zope.component._api, line 136, in subscribers
  Module zope.component.registry, line 321, in subscribers
  Module zope.interface.adapter, line 585, in subscribers
  Module plone.caching.hooks, line 102, in intercept
Intercepted

来自 hooks.py，在 intercept() 的文档字符串中：

To properly abort request processing, this will raise an exception. The
actual response (typically an empty response) is then set via a view on
the exception. We set and lock the response status to avoid defaulting to
a 404 exception.

因此，看起来这些错误可能是预期的行为？如果是这样，是否有可能让 Zope 忽略这些错误，以免它们弄乱我的日志？