使用 biblatex 修复 APA 参考书目中遗漏的逗号

Question

我使用biblatexwith apastyle 来制作参考书目。使用 LibreOffice 可获得以下结果：

我biblatex得到：

如您所见，结果没有逗号。

我该怎么做才能摆脱这个问题？

我的MWE

\documentclass[man,a4paper,nolmodern,babel,american,french]{apa6}
\usepackage[utf8]{inputenc}
\usepackage[style=apa,sortcites=true,sorting=nyt,backend=biber]{biblatex}
\DeclareLanguageMapping{french}{french-apa}
\usepackage{filecontents}


\begin{filecontents}{\jobname1.bib}
@Article{Hoppe2016,
 Title = {Learning rational temporal eye movement strategies.},
 Author= {Hoppe, David and Rothkopf, Constantin A.},
Journal= {PNAS Proceedings of the National Academy of Sciences of the United States of America},
 Year= {2016},
 Number = {29},
Pages = {8332 - 8337},
 Volume= {113},
}
\end{filecontents}
\addbibresource{\jobname1.bib}
\title{Étude du potentiel évoqué dans l'apprentissage du vocabulaire d'une première langue étrangère }

\author{Some one}
\date{}

\AtBeginBibliography{% 
\renewcommand*{\finalnamedelim}{%
\finalandcomma
\addspace
\bibstring{and}%
\space
}}


\begin{document}
\maketitle

\section{Méthode}
Bla bla 

Blah blah blah~ \cite{Hoppe2016}
\printbibliography
\end{document}

Answer 1

请参阅以下 MWE（重要变化以 标记<=======）：

\RequirePackage{filecontents}
\begin{filecontents}{\jobname.bib}
@Article{Hoppe2016,
  Title   = {Learning rational temporal eye movement strategies.},
  Author  = {Hoppe, David and Rothkopf, Constantin A.},
  Journal = {PNAS Proceedings of the National Academy of Sciences of 
             the United States of America},
  Year    = {2016},
  Number  = {29},
  Pages   = {8332 - 8337},
  Volume  = {113},
}
\end{filecontents}


\documentclass[man,a4paper,nolmodern,babel,american,french]{apa6}

\usepackage[utf8]{inputenc}

\usepackage[style=apa,sortcites=true,sorting=nyt,backend=biber]{biblatex}
\DeclareLanguageMapping{french}{french-apa}
\DeclareLanguageMapping{american}{american-apa} % <=====================
\addbibresource{\jobname.bib}

\title{Étude du potentiel évoqué dans l'apprentissage du vocabulaire 
       d'une première langue étrangère}
\author{Some one}
\date{}

\AtBeginBibliography{% 
  \renewcommand*{\finalnamedelim}{%
    \finalandcomma % language dependent
    \addspace
    \&%\bibstring{and}% & instead of and
    \space
  }%
}


\begin{document}

\maketitle

\section{Méthode}
Bla bla 

Blah blah blah~\cite{Hoppe2016}

\selectlanguage{american} % <===========================================
\printbibliography

\end{document}

为您提供美国书目，包括, and：