static revComment(Revision $rev, $local=false, $isPublic=false, $useParentheses=true)
Wrap and format the given revision's comment block, if the current user is allowed to view it.
static tags( $element, $attribs, $contents)
Same as Xml::element(), but does not escape contents.
In both all secondary updates will be triggered handle like object that caches derived data representing a revision