[Allow link objects by UID] is not working.

[kinumi]

I want to insert the image without the UID.

I tried configuration below:

@@ckeditor-controlpanel
-> [Resources Browser]
-> [Allow link objects by UID] OFF

But nothing was happend.
(Still the image is inserted with UID)

I grepped this configuration.
It does not seem to be in use...

[xx@xx collective.ckeditor-3.6.12-py2.7.egg]# find . -name "*.py" -print0 | xargs -0 grep allow_link_byuid
./collective/ckeditor/browser/ckeditorsettings.py:    allow_link_byuid = Bool(
./collective/ckeditor/browser/ckeditorsettings.py:    def get_allow_link_byuid(self):
./collective/ckeditor/browser/ckeditorsettings.py:        return self.context.allow_link_byuid
./collective/ckeditor/browser/ckeditorsettings.py:    def set_allow_link_byuid(self, value):
./collective/ckeditor/browser/ckeditorsettings.py:        self.context._updateProperty('allow_link_byuid', value)
./collective/ckeditor/browser/ckeditorsettings.py:    allow_link_byuid = property(get_allow_link_byuid, set_allow_link_byuid)

Is this configuration not working now?