[xwiki-users] Automatic watchlist in xwiki user profile doesn't work like indicate?

Hello, In the user profile page the functionnality of "Automatic document watching" field seem not working like documentation indicate? Documentation http://extensions.xwiki.org/xwiki/bin/view/Extension/Watchlist+Application  indicate: "Each time a user create a document it's automatically added it the user watchlist" But if I activate mail and "Automatic document watching: Major modifications" I receive mail if someone modify (major modif) a page who is already in my watchlist list. This watchlist functionnality was modified? Thxs for any help Pascal BASTIEN