Comment 1 for bug 1011522

The debug output:

2012-06-11 11:46:47,354 - softwarecenter.ui.gtk3.app - DEBUG - on_menu_file_activate
2012-06-11 11:46:50,604 - softwarecenter.ui.gtk3.panes.softwarepane - DEBUG - show_appview_spinner
2012-06-11 11:46:50,605 - softwarecenter.ui.gtk3.panes.availablepane - DEBUG - on_previous_purchases_activated with query: Xapian::Query(AHfor-pay-needs-reinstall)
2012-06-11 11:46:50,606 - softwarecenter.ui.gtk3.session.navhistory - DEBUG - appending: 'GetSof:2 None None "" None * SoftwareChannel
  name: Previous Purchases
  origin: software-center-agent
  component: None
  display_name: Previous Purchases
  iconname: unknown-channel
  query: Xapian::Query(AHfor-pay-needs-reinstall)
  sort_mode: 1
  installed_only: False'
2012-06-11 11:46:50,606 - softwarecenter.ui.gtk3.session.navhistory - DEBUG - A:[GetSof:0 None None "" None None, GetSof:2 None None "" None * SoftwareChannel
  name: Previous Purchases
  origin: software-center-agent
  component: None
  display_name: Previous Purchases
  iconname: unknown-channel
  query: Xapian::Query(AHfor-pay-needs-reinstall)
  sort_mode: 1
  installed_only: False, ]
2012-06-11 11:46:50,607 - softwarecenter.ui.gtk3.panes.softwarepane - DEBUG - refresh_apps
2012-06-11 11:46:50,607 - softwarecenter.ui.gtk3.panes.softwarepane - DEBUG - show_appview_spinner
2012-06-11 11:46:50,608 - softwarecenter.ui.gtk3.panes.softwarepane - DEBUG - softwarepane query: [Xapian::Query((AHfor-pay-needs-reinstall AND <alldocuments>))]
2012-06-11 11:46:50,608 - softwarecenter.db.enquire - DEBUG - initial query: 'Xapian::Query((AHfor-pay-needs-reinstall AND <alldocuments>))'
2012-06-11 11:46:50,609 - softwarecenter.performance - DEBUG - calculate nr_apps and nr_pkgs: : 0.000637054443359
2012-06-11 11:46:50,609 - softwarecenter.db.enquire - DEBUG - nearly completely filtered query: 'Xapian::Query((AHfor-pay-needs-reinstall AND <alldocuments>))'
2012-06-11 11:46:50,611 - softwarecenter.db.enquire - DEBUG - found ~11 matches
2012-06-11 11:46:50,611 - softwarecenter.performance - DEBUG - append new matches to existing ones:: 0.000160217285156
2012-06-11 11:46:50,674 - softwarecenter.ui.gtk3.panes.availablepane - DEBUG - applist-changed <AvailablePane object at 0x31805a0 (softwarecenter+ui+gtk3+panes+availablepane+AvailablePane at 0x3019680)> 11
2012-06-11 11:46:50,674 - softwarecenter.ui.gtk3.models.appstore2 - DEBUG - set_from_matches len(matches)='11'
2012-06-11 11:46:50,677 - softwarecenter.performance - DEBUG - store.append_initial: 0.00243282318115
2012-06-11 11:46:50,678 - softwarecenter.ui.gtk3.panes.softwarepane - DEBUG - hide_appview_spinner
2012-06-11 11:46:50,678 - softwarecenter.performance - DEBUG - populate model from query: 'Xapian::Query((AHfor-pay-needs-reinstall AND <alldocuments>))' (threaded: True): 0.0704529285431
2012-06-11 11:46:50,679 - softwarecenter.performance - DEBUG - enquirer.set_query(): 0.0707421302795

It looks like the spinner tab is simply not returning to the content page here, when running with SOFTWARE_CENTER_DEBUG_TABS=1 I can see the content just fine.