Remove spacing between footnotes

Question

I am trying to remove all spacing between separate footnotes in a memoir document. Not spacing between lines within a footnote, but spacing between distinct footnotes. I have been told to set the length of \footnotesep to zero, but this does not seem to work. Neither does it work to adjust \parskip.

Here is a minimum working example:

\documentclass[10pt]{memoir}
\usepackage[T1]{fontenc}
\usepackage{lipsum}

\setlength{\footnotesep}{0mm} % To my understanding, this should remove the spacing, but it does not seem to.

\begin{document}

This is\footnote{\lipsum[1]} sample\footnote{\lipsum[1]} text\footnote{\lipsum[1]}.

\end{document}

Which produces the following document (attached as a picture). I want to remove the spacing between footnotes highlighted in red.

Answer 1

The problem here, as pointed out by user campa, is that this is «a side effect of \lipsum»; and indeed by using «the starred version \lipsum*» all unwanted spacing disappears.

Therefore:

\documentclass[10pt]{memoir}
\usepackage[T1]{fontenc}
\usepackage{lipsum}

\setlength{\footnotesep}{0mm} % Working as intended.

\begin{document}

This is\footnote{\lipsum*[1]} sample\footnote{\lipsum*[1]} text\footnote{\lipsum*[1]}.

\end{document}

Credits once again to user campa, because sure enough, the spacing disappears: