自定义命令中的 parbox 和以下段落之间不需要空格

Question

我为 CV 条目创建了一个自定义命令。不幸的是，如果 parbox 中只有一行文本，这些条目之间的间距会有所不同。下图显示了这个问题。

我的 MWE：

\documentclass[%
    a4paper,
    fontsize=11pt,
    parskip=half-,
]{scrartcl}

\areaset{32em}{51\baselineskip}
\reversemarginpar
\setlength{\marginparwidth}{8em}
\setlength{\marginparsep}{1em}

\newcommand*{\cventry}[6]{%
    \par\raggedright{%
        {\leavevmode\marginline{\small{#1}\par}}%
        {\bfseries{#2}}%
        \ifx#3\else{, #3}\fi%
        \ifx#4\else{, #4}\fi%
        \ifx#5\else{, #5}\fi%
        .%
    \ifx#6\else{\newline{\parbox[t]{\textwidth}{\small\itshape#6}}}\fi%
        \pagebreak[1]
    }%
}%

\begin{document}
    \cventry{07/2019\,--\,08/2019}{Jobtitle}{Institution}{Location}{Optional}{Comment}
    \cventry{02/2019\,--\,06/2019}{Jobtitle}{Institution}{Location}{Optional}{Very long comment spreading over multiple lines, very long comment spreading over multiple lines, very long comment spreading over multiple lines,}
    \cventry{01/2018\,--\,01/2019}{Jobtitle}{Institution}{Location}{Optional}{Comment}
    \cventry{01/2017\,--\,12/2018}{Jobtitle}{Institution}{Location}{Optional}{Comment}
\end{document}

为什么会出现这种情况？我该如何解决？我还能对我的命令做哪些改进？

Answer 1

%之后添加一个\pagebreak[1]。

我还会添加一个\strutafter \itshape#6。

\documentclass[%
    a4paper,
    fontsize=11pt,
    parskip=half-,
]{scrartcl}

\areaset{32em}{51\baselineskip}
\reversemarginpar
\setlength{\marginparwidth}{8em}
\setlength{\marginparsep}{1em}

\newcommand*{\cventry}[6]{%
    \par\raggedright{%
        {\leavevmode\marginline{\small{#1}\par}}%
        {\bfseries{#2}}%
        \ifx#3\else{, #3}\fi%
        \ifx#4\else{, #4}\fi%
        \ifx#5\else{, #5}\fi%
        .%
    \ifx#6\else{\newline{\parbox[t]{\textwidth}{\small\itshape#6\strut}}}\fi%
        \pagebreak[1]%
    }%
}%

\begin{document}
    \cventry{07/2019\,--\,08/2019}{Jobtitle}{Institution}{Location}{Optional}{Comment}
    \cventry{02/2019\,--\,06/2019}{Jobtitle}{Institution}{Location}{Optional}{Very long comment spreading over multiple lines, very long comment spreading over multiple lines, very long comment spreading over multiple lines,}
    \cventry{01/2018\,--\,01/2019}{Jobtitle}{Institution}{Location}{Optional}{Comment}
    \cventry{01/2017\,--\,12/2018}{Jobtitle}{Institution}{Location}{Optional}{Comment}
\end{document}