gnome-app-install crashed with ValueError in _refilter()

[Andrea]

Binary package hint: gnome-app-install

1)Version of Ubuntu:
Description: Ubuntu jaunty (development branch)
Release: 9.04
2)Version of the crashed program:
gnome-app-install:
  Installato: 0.5.21-0ubuntu1
  Candidato: 0.5.21-0ubuntu1
  Tabella versione:
 *** 0.5.21-0ubuntu1 0
        500 http://it.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status
3) What you expected to happen
I wanted to going in "programmation" category.
4) What happened instead
I was going on the "programmation" category, but the program doesn't go here and it's crashed

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/gnome-app-install
InterpreterPath: /usr/bin/python2.6
Package: gnome-app-install 0.5.21-0ubuntu1
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/gnome-app-install
ProcEnviron:
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/gnome-app-install']
SourcePackage: gnome-app-install
Title: gnome-app-install crashed with ValueError in _refilter()
Uname: Linux 2.6.28-10-generic i686
UserGroups: adm admin audio cdrom dialout dip fax fuse lpadmin netdev plugdev sambashare tape vboxusers video