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Is it possible to support multiple references to a footnote content? Seems that blackfriday has implemented the feature through russross/blackfriday#366.

Sentence one[^1]. Sentence two[^1]. Sentence three[^1].

[^1]: They should all refer to here.

As of Hugo 0.49, whose blackfriday engine outputs one line of footnote while mmark does 3 lines of them with incremental numbers.