Superflous vertical spacing after tagging environment

For strange reasons, the taggedblock environment adds \leavevmode at the end, which is clearly wrong.

\documentclass{scrartcl}

\usepackage{tagging}
\def\endtaggedblock{\endcomment} % we can't use \renewcommand

\usetag{mytag}

\begin{document}

%a tagged block
\begin{taggedblock}{mytag}
\begin{enumerate}
    \item 
    foo
    \item
    bar
\end{enumerate}
\end{taggedblock}
% normal spacing
\begin{enumerate}
    \item 
    foo
    \item
    bar
\end{enumerate}
% normal spacing
\begin{enumerate}
    \item 
    foo
    \item
    bar
\end{enumerate}

\end{document}

This is a clarificatory answer; as the person who "caused the problem in the first place", I don't expect upvotes (nor, hopefully, downvotes)

I am in the process of deprecating the tagged package; Boris Veytsman's multiaudience package is much better thought-out, and Boris is a much better TeXnician than I am.

Here's your original problem, rewritten to use multiaudience:

\documentclass{scrartcl}

\usepackage{multiaudience}

\SetNewAudience{mytag}
\DefCurrentAudience{mytag}

\begin{document}

%a tagged block
\begin{shownto}{mytag}
\begin{enumerate}
    \item 
    foo
    \item
    bar
\end{enumerate}
\end{shownto}
%here you have additional vertical space
\begin{enumerate}
    \item 
    foo
    \item
    bar
\end{enumerate}
%here you don't 
\begin{enumerate}
    \item 
    foo
    \item
    bar
\end{enumerate}

\end{document}