I won't pretend I understood what this template is for, but right after it got enabled, I get errors on the "Recent changes" page rendering, it looks like this now:
09:38:47 MediaWiki:Sidebar (diff; hist) . . (+<rc-change-size>) . . Akw (Talk | contribs) N 07:44:22 Template:Switch (diff; hist) . . Akw (Talk | contribs)
Notice the breakage: (+<rc-change-size>). All newer changelog entries are also corrupted like that.
The browser is IceWeasel (firefox) 2, under Debian GNU/Linux.
--hmh 02:45, 10 May 2007 (CEST)