Description of problem:

Preupgrade crashes while upgrading to Rawhide from F9 with a traceback and exception, hanging the UI saying "Downloading installer metadata..."

Version-Release number of selected component (if applicable):

0.9.3-3

How reproducible:

Always.

Steps to Reproduce:
1.$ /usr/bin/preupgrade in console
2.Select rawhide, go through the motions
3.Stare exasperated at the traceback
  
Actual results:

[xxxxxxx@xxxxxx ~]$ preupgrade
Loaded plugins: refresh-packagekit
No package matched to remove
Traceback (most recent call last):
  File "/usr/share/preupgrade/preupgrade-gtk.py", line 198, in on_assistant_apply
    self._do_main()
  File "/usr/share/preupgrade/preupgrade-gtk.py", line 206, in _do_main
    self.main_preupgrade()
  File "/usr/share/preupgrade/preupgrade-gtk.py", line 349, in main_preupgrade
    self.pu.retrieve_treeinfo()
  File "/usr/lib/python2.5/site-packages/preupgrade/__init__.py", line 395, in retrieve_treeinfo
    self.instimage = cp.get('stage2', 'instimage')
  File "/usr/lib64/python2.5/ConfigParser.py", line 520, in get
    raise NoOptionError(option, section)
ConfigParser.NoOptionError: No option 'instimage' in section: 'stage2'

The UI isn't frozen, but stops at "Downloading installer metadata...", with the system tray tooltip reporting 92.5%.

Expected results:

Preupgrade completes, leaving me with a yummy rawhide system