如何在非零 parskip 环境中删除空格前面的列表？

Question

如何在段落之间获得空格（我想要在包含块段落的不规则文档中获得该空格），并避免在没有空格开头的列表之前出现多余的空格？

如果我设置 topsep=-\parskip，列表将不会与其上方的文本正确分离。但我也会丢失列表后到下一段之间的空格。

这是我的 MWE：

\documentclass{article}
\usepackage{enumitem}
\newlist{myshortlist}{itemize}{4}

% Attempt 1: lose space after list before next paragraph
%\setlist[myshortlist]{label=\textbullet,nolistsep,topsep=-\parskip}

% Attempt 2: get extra space between list and immediately preceeding text.
\setlist[myshortlist]{label=\textbullet,nolistsep}

\begin{document}
\raggedright\setlength\parskip{\baselineskip}

Want these paragraphs separated by whitespace.

Want these paragraphs separated by whitespace.

Want space before this line, but not between this line and list:
\begin{myshortlist}
  \item one
  \item two
\end{myshortlist}

Want space before this line, but not between this line and list:
\begin{myshortlist}
  \item one
  \item two
\end{myshortlist}
\end{document}

Answer 1

\documentclass{article}
\usepackage{enumitem}
\newlist{myshortlist}{itemize}{4}

\makeatletter
\setlist[myshortlist]{label=\textbullet,nolistsep,topsep=-\parskip, after*={\@topsepadd\parskip}}
\makeatother
\begin{document}
\raggedright\setlength\parskip{\baselineskip}

Want these paragraphs separated by whitespace.

Want these paragraphs separated by whitespace.

Want space before this line, but not between this line and list:
\begin{myshortlist}
  \item one
  \item two
\end{myshortlist}

Want space before this line, but not between this line and list:
\begin{myshortlist}
  \item one
  \item two
\end{myshortlist}

\end{document}