[Moin-user] Bug with remember_last_visit and migration script?

[Malte Helmert]

Dear developers,

I think that I am experiencing a bug in Moin 1.3.3 related to the 
remember_last_visit feature.

Steps to reproduce:

1. Go to http://alfons.informatik.uni-freiburg.de/wawiki/
2. Log in as "TorstenTest", password "foo".
3. Go to http://alfons.informatik.uni-freiburg.de/wawiki/
    (Be sure to enter the address manually and not just use the back link
    of the browser or something like this. Check that you don't get a
    cached version of the page.)

After step 3., you should be presented with an internal server error.

Notes:
* You can mess around with the wiki in any way you wish. The data is
   copied from a real wiki, but this installation is just an internal
   test installation.
* There might be some downtime of the wiki in the next few hours. If so,
   please try again a few minutes later. I have to unplug the computer
   briefly to be able to move some furniture around. :-)
* The test wiki uses Moin 1.3.2, but the problem is also present
   in the "real" wiki, which uses Moin 1.3.3.
* This is a wiki that was migrated from Moin 1.2.x. I could *not*
   reproduce the problem with users created in Moin 1.3.3, only with
   users that were migrated. So it might be related to the migration
   scripts.
* I am quite convinced that the remember_last_visit feature is
   responsible for the bug. In a wiki with ~100 users, two users
   reported this problem. Both had this feature enabled, and the
   vast majority of users (about 95%) have it disabled. Besides,
   it seems reasonable to assume that this features is involved in
   some way when users navigate to the "root" of the wiki because
   the last page must be looked up then. Moin only crashes if you
   go to the "root" of the wiki, not if you navigate to a specific
   page.

Please tell me if you need more information.

Malte