[MASTER] software-center crashed with DocNotFoundError

[lendage]

This is the master bug for all DocNotFound errors.

This bug occurs at the following places:

File "/usr/share/software-center/softwarecenter/backend/channel.py", line 198, in _get_channels
 doc = self.db.xapiandb.get_document(m.get_docid())

File "/usr/share/software-center/softwarecenter/backend/channel.py", line 200, in _get_channels
 for term_iter in doc.termlist():

File "/usr/share/software-center/softwarecenter/db/database.py", line 290, in get_xapian_document
 doc = self.xapiandb.get_document(m.docid)

File "/usr/share/software-center/softwarecenter/db/database.py", line 297, in get_most_popular_applications_for_mimetype
 matches = enquire.get_mset(0, 100)

File "/usr/share/software-center/softwarecenter/db/database.py", line 340, in get_pkgname
 pkgname = doc.get_data()

File "/usr/share/software-center/softwarecenter/db/database.py", line 381, in get_xapian_document
 for m in self.xapiandb.postlist("AA"+appname):

File "/usr/share/software-center/softwarecenter/db/database.py", line 396, in is_appname_duplicated
 for (i, m) in enumerate(self.xapiandb.postlist("AA"+appname)):

File "/usr/share/software-center/softwarecenter/models/appstore.py", line 195, in _get_estimate_nr_apps_and_nr_pkgs
 tmp_matches = enquire.get_mset(0, len(self.db), None, xfilter)

File "/usr/share/software-center/softwarecenter/models/viewswitcherlist.py", line 213, in _update_channel_list_installed_view
 matches = enquire.get_mset(0, len(self.db))

File "/usr/share/software-center/softwarecenter/view/catview_gtk.py", line 290, in _show_recommended_apps_widget
 tmp_matches = enquire.get_mset(0, len(self.db), None, self.apps_filter)

File "/usr/lib/python2.7/dist-packages/xapian/__init__.py", line 6583, in __init__
    self.doclength = iter._iter.get_doclength()

File "/usr/share/software-center/softwarecenter/ui/gtk3/models/appstore2.py", line 423, in load_range
    doc = db.get_document(matches[i].docid)

[Gary Lasker (gary-lasker)]

This one was fixed in a clever manner by mvo during the Oneiric cycle. The lack of new duplicates is a good indicator that indeed this one is fix released.