[Seaside] Seaside 3 manually expire a session

[gettimothy]

Good morning. Metacello new     configuration: 'Seaside3';     repository: 'http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main';     version: #stable;     load: 'OneClick'. Just installed Announcements and I am refreshing/relearning about session handling. Its going well until I get to this: http://book.seaside.st/book/in-action/session/manually-expire and I get a DNU. MessageNotUnderstood: MySuperDuperSession>>expire Sure enough, its gone. I searched the google and did not see anything obvious. pointers/links greatly appreciated. thx
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