Test passing of templates

This doesn't work: the string returned by the #invoke is returned after all templates in this page have been expanded; wikitext will not expand any templates in the return string.

{{cited item wrapper |newspaper_item_number = n12 |content = {{cited_item_citation_row|newspaper_title = Dummy Times|publication_date = 1 June 1959|newspaper_page = 3|newspaper_column = 2}}{{cited_item_property_row|property = Item Number|value = n1200}}{{cited_item_property_row|property = Full Text|value = To the wife of Charles McFann, a son}}{{cited_item_property_row|property = Source|value = https://somewhere.com/dummytimes/article/1200/}}}}