[Zope] cookie crumbler

[Garry Saddington]

I have just been reading a Z2 log and have noticed that when I am logged 
in as a manager my username is displayed in the log, however when logged 
in using cookie crumbler as a normal user only 'Anonymous' appears as 
the user name in the log. Is there some way to make the correct user 
name appear in the log?
AUTHENTICATED_USER returns the correct user name. I am using Zope 2.9.0.
Thanks
Garry