Right now any user with edit permissions can change the title of an article.
This is a bad idea imo because allowing that will break any incomming links to that article as the article title changes the url to the article.
Wouldn't it be better to handle this like mediawiki? Page titles can only be changed using "move" and when the page is moved a redirect page is created that simply does a 301 "permanently moved" with the location set to new url for the page. This way pages can have the title changed and not break incomming links.
If that's to much then perhaps a new permission in usergroups "allow user to edit title" could be added? It would suck if you had a page that brought in a lot of traffic from inbound linkage and then someone changed the title.
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