[GTK3] "All Software" button doesn't work the second time

This bug was fixed in the package software-center - 4.1.16

---------------
software-center (4.1.16) oneiric; urgency=low

  [ Michael Vogt ]
  * softwarecenter/ui/gtk3/panes/availablepane.py,
    softwarecenter/ui/gtk3/views/catview_gtk.py:
    - make clicking on top-rated app in a subcategory work
  * softwarecenter/ui/gtk3/widgets/apptreeview.py:
    - fix remove button in the tree (LP: #828064)
  * softwarecenter/ui/gtk3/views/appdetailsview_gtk.py:
    - fix crash when scrolling (LP: #828440)
  * softwarecenter/enums.py:
    - add new Icons.INSTALLED_OVERLAY
  * softwarecenter/ui/gtk3/views/appdetailsview_gtk.py:
    - show installed emblem for installed apps (LP: #828253)
  * softwarecenter/ui/{gtk,gtk3}/views/appdetailsview_gtk.py:
    - fixup for the latest GIcon API changes
  * softwarecenter/ui/gtk3/widgets/exhibits.py:
    - use the ubuntu color for the default exhibit LP: #827315
  * softwarecenter/ui/gtk3/widgets/exhibits.py:
    - use a longer exhibit timeout
  * softwarecenter/ui/gtk3/widgets/exhibits.py:
    - reinit mouse pointer when exhibits toggle
  * softwarecenter/ui/gtk3/panes/viewswitcher.py:
    - fix switching back to the main page when clicking on
      "All software" (LP: #828675)
  * softwarecenter/ui/gtk3/models/appstore2.py,
    softwarecenter/ui/gtk3/views/catview_gtk.py,
    softwarecenter/ui/gtk3/widgets/buttons.py:
    - show (raw) categories info in the FeaturedTile()

  [ Matthew McGowan ]
  * lp:~mmcg069/software-center/sortable-app-tree-view:
    - add multiple sort options for the results
    - fix crash if no weblive is available LP: #824603

  [ Martin Pitt ]
  * software-center: Import the static gobject, not the GI module, as this
    uses pygtk.
  * All files: Do not import the gi.repository.GObject module with static
    bindings like gtk, and vice versa. It is brittle now, and breaking with
    newer pygobject versions like 2.90.1.
 -- Michael Vogt <email address hidden> Thu, 18 Aug 2011 18:36:04 +0200