If you answer a question - or have a question you asked answered by someone - please remember to edit the page and set the status to answered. The status is in a drop-down list below the edit box.
I'm new to administering TWiki (just installed it at home) but I am thankful for your evaluation of what's wrong. I added the following patch to fix this - it works on my installation. You should probably file a bug for this too develop.twiki.org's Bugs.ActionTrackerPlugin