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结合 biblatex、hyperref 和 latexdiff 时出错

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结合 biblatex、hyperref 和 latexdiff 时出错

我偶然发现了和包裹和. 如果添加的引文作者多于 maxcitenames参数，那么我在编译时会收到两对错误：

额外的}，或者被遗忘的\endgroup。}

缺少} 插入。}

麦格维：

\documentclass{memoir}
%DIF LATEXDIFF DIFFERENCE FILE

\usepackage{hyperref}

\usepackage[
            backend=bibtex,
            style=authoryear-ibid,
            defernumbers=true,
            maxnames=1,  %%% OPTION ONE: Change this to a number greater or equal to the maximal number of authors
            ]
{biblatex}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@book{dr1957cat,
    title={The Cat in the Hat},
    author={Seuss, Dr. and Ginsburg, Avi},
    series={Beginner books},
    year={1957},
    publisher={Random House}
}
\end{filecontents*}
\addbibresource{\jobname.bib}

%DIF PREAMBLE EXTENSION ADDED BY LATEXDIFF and edited by me for the MCVE

\RequirePackage[normalem]{ulem} %DIF PREAMBLE
\RequirePackage{color}\definecolor{RED}{rgb}{1,0,0}\definecolor{BLUE}{rgb}{0,0,1} %DIF PREAMBLE
\providecommand{\DIFaddtex}[1]{{\protect\color{blue}\uwave{#1}}} %DIF PREAMBLE

\providecommand{\DIFaddbegin}{} %DIF PREAMBLE
\providecommand{\DIFaddend}{} %DIF PREAMBLE

% OPTION THREE: Define this as:{\DIFadd}[1]{#1} and lose the intent
\providecommand{\DIFadd}[1]{\texorpdfstring{\DIFaddtex{#1}}{#1}} %DIF PREAMBLE
%DIF END PREAMBLE EXTENSION ADDED BY LATEXDIFF

\begin{document}

\DIFaddbegin
  \DIFadd{  %%% OPTION TWO: Comment out this line and the corresponding }
    \textcite{dr1957cat}
  }         %%% OPTION TWO: This is the corresponding }
\DIFaddend
. 'twas a good book.

\end{document}

我已经找到了一些解决方法（在 MCVE 中注明），但无法确定这是设计错误还是为什么会发生这种情况。那么，为什么我必须使用这些解决方法？

PS 错误发生在这个序列之后（即不在编译 bibtex 之前）

pdflatex mcve.tex
bibtex mcve
pdflatex mcve.tex

该问题也可以在

\documentclass{article}
\RequirePackage[normalem]{ulem} 
\usepackage[backend=bibtex]{biblatex}
\addbibresource{biblatex-examples.bib}

\renewbibmacro*{cite}{{\penalty-1}\space}

\begin{document}
  \uwave{\cite{sigfridsson}}

  \uwave{{\penalty-1}\space}
\end{document}

文档环境中的第一行导致错误，而第二行则正常。

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