If the TT stuff loads CGI w/o -utf8, that "instance" (not really instance)...
... will compete with use CGI in EGCatloader.pm. Really. Normally I enjoy
perl but the awful, horrendous, unspeakable black magic used in CGI.pm
has given me a great deal of trouble today.
Specifically, I could not really succeed in subclassing it. I had a kind
of half success before, but I could only really replace methods in my
subclass, but not call the methods unchanged from the original base
class (CGI). This manifested in a bug where I had been using
the query_string() method preserve search terms across some pages, but
that method had stopped working since I introduced the CGI subclass.
In an attempt to fix that, I discovered this document
http://stein.cshl.org/WWW/CGI/#subclassing
and tried the advice therein, and several variations thereof, but
everything I produced caused mod_perl to consume memory until it keeled
over from OOM.
Finally, I discovered that I never really needed the subclass in the
first place, so long as 'use CGI' with no module parameters doesn't
happen in the same process as 'use CGI qw/-utf8/'.