We recently upgraded to FC 7 and I've been trying to tweak the default roles. For example, I want to let Contributors approve their own content. When I make the changes under Admin > Roles > Contributors > Site Permissions > CanApproveOwnContent and select the appropriate options for the site tree, none of these changes seem to take effect. I even updated the application, but the Contributor role seems to still be stuck with the same old permissions. Is there something else that I am supposed to change?