When I went to the page where I change my preferences to see what could be
configured and subsequently tried to log out, bugzilla passed to me a set of
cookies each with an expiration dates somewhere in 1969! The result was
that I could not successfully logout. bugzilla then reported to me that it
had lost track of me and that I would have to log in again to do anything.
This does not seem to be causing any trouble on our end. The reasoning that the
date is set as such is that it automatically becomes an invalid cookie upon bein
set so when you relogin it will set the cookies to a valid state with 2029 as
the expiration year.