Comment 2 for bug 590829

not reproduced in maverick (i think it must be nominated for Lucid only distro):

apt-cache policy bash-completion
bash-completion:
  Installed: 1:1.2-2ubuntu1
  Candidate: 1:1.2-2ubuntu1
  Version table:
 *** 1:1.2-2ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ maverick/main i386 Packages
        100 /var/lib/dpkg/status