Functions not dropped.

I was a little surprised today when I tried to move a production
database on to my test server. The test server already had a copy of
the database so I did

psql -Uadmin template1
drop database admin;
create database admin;

When I tried to reload the production database dump, I got a series of
errors relating to functions. I repeated the exercise but this time did
a \df prior to trying to load the database. In the public schema for the
newly created admin database where all the functions from the old one.
It seems that the drop database doesn't drop all of the functions. Is it
supposed to ? I am using 7.4.2 on FC2.

If it isn't is there a way to clean them all out before the load ?

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