{{msg-mw|cite error no link label group|notext=yes}}

I'm not sure nowiki works like this with a parameter. Usually, all parameters are shown with their raw text, for example <nowiki>{{{1}}}</nowiki> will remain {{{1}}} even when transcluded. It usually requires a {{#tag:nowiki|{{{1}}}}} to transclude a parameter within nowiki tags.

This is a change made in mwr:66749. Please comment in code review so the developer can look into it.