I've been trying to edit the discussion page at http://udm.branchable.com/index.en.html but it does not work. Sometimes it creates a page in index/Discussion but then the page is not linked properly from the discussed page. And then it creates an index/ directory so the wiki gets redirected there.

I’m wondering if this is not caused by the po plugin which changes how the directory and pages are handled (using /path/title-of-the-page/index.en.html and such).