\BabelFootnote undefined

[u-fischer]

The documentation claims about \BabelFootnote

Note this command is available always in bidi documents, even without layout=footnotes.

But this is not true

\documentclass{article}
\usepackage[ngerman,bidi=basic]{babel}
\BabelFootnote{\footnote}{}{}{}%
\begin{document}
blub
\end{document}

errors

! Undefined control sequence.
<recently read> \BabelFootnote 
               
l.33 \BabelFootnote
                 {\footnote}{}{}{}%
? x

It works fine as soon as I add layout=footnotes