Some special pages using OutputPage::wrapWikiMsg (or similar) to add a message, for example when there is no result.
When that special page (for example Special:RecentchangesLinked) get transcluded and there is no result, the whole page shows QINU and has the special page name as title, see the screenshot from a user on dewiki
This is happen, because OutputPage::wrapWikiMsg calls OutputPage::addWikiText calls OutputPage::addWikiTextTitle and that finally calls Parser::parse which results in a recursively call of that method and that is not a good idea(CommentDoc contains a note "Do not call this function recursively.")
This means the special page transclusion must be delayed to the end of the parse or reset $wgParser to a own/new parser object)
Is there a idea to avoid that the strip markers are shown, when a special page shows no result? That always annoying users on dewiki.