[NTG-context] Footnotes in footnotes

Hi folks, in https://wiki.contextgarden.net/Footnotes there is Oblomov's example for footnotes in footnotes: This\footnote{Or that\footnote{Or possibly even the other.}, if you prefer.} is a sentence with a footnote. I get only the footnote number of the inner footnote in the first footnote, not the whole second/inner footnote. What's going wrong? Greetings Thomas