title: pgbouncer - closing because: unclean server on every connection
body: <p>I'm running Django 1.3 with PostgreSQL 9.1/PostGIS 1.5, psycopg2 2.4.2 and pgbouncer 1.4.2.</p>
  
  <p>On every single connection to the database I get a log entry in pgbouncer.log:</p>
  
  <blockquote>
    <p>2011-11-20 02:15:25.027 29538 LOG S-0x96c2200: app_db/postgres@192.168.171.185:5432 closing because: unclean server (age=0).</p>
  </blockquote>
  
  <p>I can't find any solution to this problem - anybody have an idea why? I've tried reconfiguring pgbouncer (session/transaction mode, different timeouts etc), but to no avail.</p>