does not support detecting if apt cache is broken

Spec updated.
<https://wiki.ubuntu.com/SoftwareStore?action=diff&rev2=188&rev1=187>

The design involves an alert that appears when "Install" or "Remove" is chosen, and that is also openable by clicking an extra icon in the "Get Free Software" and "Installed Software" items in the navigation pane.
<https://wiki.ubuntu.com/SoftwareStore#Handling%20a%20broken%20apt%20cache>

Let me know if there are any inaccuracies.

This bug was fixed in the package software-center - 2.1.4

---------------
software-center (2.1.4) maverick; urgency=low

  [ Gary Lasker ]
  * softwarecenter/view/availablepane.py:
    - fix error when using the login dialog and
      intermittently while searching (LP: #596443)
  * softwarecenter/app.py,
    softwarecenter/backend/channel.py,
    softwarecenter/view/channelpane.py,
    softwarecenter/view/viewswitcher.py:
    - implement channel views for installed items
  * softwarecenter/view/availablepane.py,
    softwarecenter/view/catview.py,
    softwarecenter/view/catview_gtk.py:
    - implement single-pane department screen
  * softwarecenter/view/catview_gtk.py:
    - use stock go-next icon for the show all button,
      small fix in CarouselPoster's draw method
  * merge lp:~mmcg069/software-center/catview-conform-w-spec:
    many nice improvements to the category view and a fix
    for the dept screen resize bug (LP: #598502), many thanks
    to Matthew McGowan!
  * merge lp:~mmcg069/software-center/catview-conform-w-spec:
    fixes subcategory screen bug (LP: #598498), thanks Matthew
    McGowan!
  * softwarecenter/view/catview_gtk.py:
    - use large icons in single-pane department screen per
      the spec

  [ Michael Vogt ]
  * mergedp:~arky/ubuntu/maverick/software-center/fixes-595500:
    - Fixes inaccessible install/remove buttons (LP: #538404)
    - Fixes inaccessible Screenshot image (LP: #595500)
    many thanks to Rakesh 'arky' Ambati
  * merged lp:~mmcg069/software-center/catview-conform-w-spec
    to make the categories look like the spec
  * add information about "upgraded" packages to the history pane
    (thanks to seb128 for the suggestion)
  * merged lp:~mvo/software-center/new-apps-test1 and
    lp:~mmcg069/software-center/catview-conform-w-spec, thanks
    to Matthew McGowan
  * merged lp:~mvo/software-center/update-from-var-lib-apt-lists
    to support meta-data in deb822 format in /var/lib/apt/lists
  * softwarecenter/view/catview_gtk.py:
    - append "all" to get pathbar when "all" button is clicked in
      a subcategory
  * support detecting a broken apt cache and repairing it
    (LP: #430200)
  * debian/control:
    - drop transitional gnome-app-install package, its no longer
      required for clean upgrades
 -- Michael Vogt <email address hidden> Tue, 29 Jun 2010 11:42:16 +0200