Last modified: 2014-04-16 19:32:03 UTC
See http://en.wikipedia.org/w/index.php?title=User:Christian75/sandbox2&oldid=569697466 . If you edit the page with VE you won't see the broken template at all. Thanks.
Essentially the problem here is "broken wikitext produces confusion"; there's not really anything that we can do except encourage people to use VisualEditor rather than wikitext where such errors are possible.