Board Thread:Support Requests - Getting Technical/@comment-33566750-20190610015344/@comment-168424-20190610205802

FYI, Template:- and Template:Clr (and Template:Clear) are not on wikis by default.

It looks like Template:Clr was available from June 20, 2014 to just before 10:08 (UTC), September 18, 2015 (when it was deleted).