= Description =

If you have two superuser accounts you can't su to the other superuser user without a `AttributeError: 'NoneType' object has no attribute 'auth_method'`.
If you go in a line from one superuser to another superuser and then to a normal user you get an internal server error.

== Steps to reproduce ==

 * create three user in your wiki
 * two setup as superuser
 * toggle from one superuser to the next one and then to a normal user.

You don't get a traceback, but the console log tells 
{{{
2009-03-09 23:22:37,614 ERROR MoinMoin.wsgiapp:253 An exception has occurred.                                        
Traceback (most recent call last):                                                                                   
  File "/home/user/workspace/moin-1.9/MoinMoin/wsgiapp.py", line 243, in __call__                                     
    context = init(request)                                                                                          
  File "/home/user/workspace/moin-1.9/MoinMoin/wsgiapp.py", line 37, in init                                          
    context.user = setup_user(context, context.session)                                                              
  File "/home/user/workspace/moin-1.9/MoinMoin/wsgiapp.py", line 196, in setup_user                                   
    userobj = auth.handle_logout(context, userobj)                                                                   
  File "/home/user/workspace/moin-1.9/MoinMoin/auth/__init__.py", line 406, in handle_logout                          
    if userobj.auth_method == 'setuid':                                                                              
AttributeError: 'NoneType' object has no attribute 'auth_method'                                                     
2009-03-09 23:22:38,022 INFO MoinMoin.web.serving:41 localhost "GET /Example?action=logout&logout=logout HTTP/1.1" 500 -                                                                                                                  
2009-03-09 23:22:38,056 ERROR werkzeug:106 Error on request:                                                         
Traceback (most recent call last):                                                                                   
  File "/home/user/workspace/moin-1.9/MoinMoin/support/werkzeug/serving.py", line 150, in run_wsgi                    
    execute(app)                                                                                                     
  File "/home/user/workspace/moin-1.9/MoinMoin/support/werkzeug/serving.py", line 137, in execute
    application_iter = app(environ, start_response)
  File "/home/user/workspace/moin-1.9/MoinMoin/support/werkzeug/utils.py", line 244, in __call__
    return self.app(environ, start_response)
  File "/home/user/workspace/moin-1.9/MoinMoin/wsgiapp.py", line 243, in __call__
    context = init(request)
  File "/home/user/workspace/moin-1.9/MoinMoin/wsgiapp.py", line 37, in init
    context.user = setup_user(context, context.session)
  File "/home/user/workspace/moin-1.9/MoinMoin/wsgiapp.py", line 196, in setup_user
    userobj = auth.handle_logout(context, userobj)
  File "/home/user/workspace/moin-1.9/MoinMoin/auth/__init__.py", line 406, in handle_logout
    if userobj.auth_method == 'setuid':
AttributeError: 'NoneType' object has no attribute 'auth_method'
}}}

== Example ==
##Add URL that show the bug, screenshot or test wiki markup that fail...

##URL: 

##{{attachment:screenshot.png}}

##{{{
##Example wiki markup that fail
##}}}

== Component selection ==

## Where you think is this bug happening ? (general, plugin [plugin name], theme [theme name], ...

 * general

== Details ==

## If you got a traceback, please save the traceback page as html and attach here:
## [[attachment:traceback.html]]

## if the bug is in this wiki, just kill the table and write: This Wiki.

## If a traceback is not available, please fill in the details here:
|| '''!MoinMoin Version''' || 1.9 4638:7bc4d1571f8f ||
|| '''OS and Version''' || linux ubuntu 8.10 ||
|| '''Python Version''' || 2.5  ||
|| '''Server Setup''' || standalone ||
|| '''Server Details''' || ||
|| '''Language you are using the wiki in''' (set in the browser/UserPreferences) || ||

== Workaround ==
## How to deal with the bug until it is fixed


= Discussion =


= Plan =
## This part is for Moin``Moin developers:

 * Priority: 
 * Assigned to:
 * Status: duplicate? fixed by http://hg.moinmo.in/moin/1.9/rev/3e4e67bcbedd ?

----
## If you are a moin core developer, replace the category to Category* in these cases:
## Category MoinMoinNoBug - if this is not a bug.
## Category MoinMoinBugConfirmed - if you can confirm the bug on current code.
## Category MoinMoinBugFixed - after the bug is fixed in current code.
CategoryMoinMoinBugFixed