default_pageext in the setup file does not work for me. 

I tried to set it as 'txt' and as a custom plugin I am developing but when I edit a page it only ever loads with Markdown selected.

Yes I am only trying to set it to loaded and working plugins. 

ikiwiki version 3.20101129

> I've tested `default_pageext` with 3.20110124, and it works fine.
> 
> It seems to me from what you describe that you expect
> it to have an effect when you go and edit an existing page.
> That's not what it's for, it only chooses the default used 
> when creating a new page. 
> 
> Closing this bug as apparent user error. --[[Joey]] [[done]]
