software-center crashed with AttributeError in _cell_data_func_cb(): 'TreeModelFilter' object has no attribute 'load_range'

Status changed to 'Confirmed' because the bug affects multiple users.

This bug was fixed in the package software-center - 5.1.12

---------------
software-center (5.1.12) precise; urgency=low

  [ Michael Vogt ]
  * lp:~mvo/software-center/webcam-string-fix:
  - small fix to support the debtagshw updated tags for hardware::camera
    (split into webcam,digicam now)
  * lp:~mvo/software-center/trivial-nm-state-override:
    - support the SOFTWARE_CENTER_NET_CONNECTED environment value to
      force the connected state as a stopgap workaround for bug 911706
  * lp:~mvo/software-center/lp941361:
    - adds a general make_string_from_list() helper to build (somewhat)
      i18n friendly human readable strings easily (LP: #941361)
  * lp:~mvo/software-center/expunge-cache:
    - merge os.nice() addition
  * lp:~mvo/software-center/lp789596:
    - better (less scary) string for updates from third-party
      venders (LP: #789596)
  * lp:~mvo/software-center/fix-refresh-of-whats-new:
    - fix missing refresh of the what's new content on a database
      reopen so that new content from the agent appears as soon
      as it finishes the update
  * lp:~mvo/software-center/review-fixes:
    - ensure ui is correctly updated after submitting/modifying review
  * lp:~mvo/software-center/simulate-slow-network:
    - add a small helper to simulate a slow network connection to
      see if we have hidden latencies in the UI when the network
      is (really) slow
  * lp:~mvo/software-center/top-rated-refresh:
    - ensure that the top-rated apps are refreshed when we have new data
  * lp:~mvo/software-center/apptreeview-tweaks:
    - fix 'load_range" errors when navigating the installed view
      (LP: #913675), and do some nice needed refactoring/cleanup

  [ Anthony Lenton ]
  * lp:~elachuni/software-center/dont-store:
    - consolidate Ubunty SSO logins to use "Ubuntu Software Center", fixes
      inconsistent UI and storing of two keys in they keyring, as well as
      being prompted to log in twice the first time that you review an app
  * lp:~elachuni/software-center/pep8-test,
    lp:~elachuni/software-center/pep8-test-part2,
    lp:~elachuni/software-center/pep8-test-part3,
    lp:~elachuni/software-center/pep8-test-part4:
    - add a unit test to check code statically for pep8 compliance and update
      more and more of the code to meet it

  [ Gary Lasker ]
  * lp:~gary-lasker/software-center/fix-crash-lp944875:
    - Fix an intermittent crash that can happen if the installed view pane
      has not been built yet when a call to show the spinner is made as a
      result of a refresh (LP: #944875)
  * lp:~gary-lasker/software-center/list-view-icon-coordinates-lp947624:
    - This branch adds support for providing the correct icon size and
      on-screen coordinates values in the Unity launcher integration dbus
      call when an installation is initiated via the list view
      (LP: #947624)
  * lp:~gary-lasker/software-center/enable-published-date-unit-test:
    - unit test change only, enable the published-date unit test that was
      disabled pending deployment of support on the staging server

  [ Natalia Bidart ]
  * lp:~nataliabidart/software-center/one-auth:
    - use consistently the same app name for eve...