Is there a way to construct a template that appears on a page only once, even if it's
transcluded multiple times?
For example, if the template "T" contains the word "foo", then:
{{T}} {{T}} {{T}} {{T}}
would display as "foo", not "foo foo foo foo".
My use case is that "T" contains a navigation menu. I want to make sure it never
appears more than once on any page.
Thanks,
DanB
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