Bug#992023: latexdiff: with \cite commands -->source with mismatched braces

[Hugh Pumphrey]

Package: latexdiff
Version: 1.3.1-1
Severity: important 
Tags: upstream

Dear Maintainer,


On upgrading from buster to bullseye I note that latexdiff is now 
affected with a bug which causes it to emit latex source which
does not compile, if the original source contained \cite{} (or indeed
\citep{} and \citet{}). The bug has been reported elsewhere and is described
clearly and in some detail at 

https://tex.stackexchange.com/questions/574280/latexdiff-with-cite-commands-gives-output-with-apparently-mismatched-braces

The stackexchange discussion provides a minimal working example and notes why
the bug occurs. It also suggests work-arounds.

Best wishes

Hugh Pumphrey


-- System Information:
Debian Release: 11.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-8-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages latexdiff depends on:
ii  perl  5.32.1-4

Versions of packages latexdiff recommends:
ii  texlive-latex-base         2020.20210202-3
ii  texlive-latex-extra        2020.20210202-3
ii  texlive-latex-recommended  2020.20210202-3
ii  texlive-plain-generic      2020.20210202-3

Versions of packages latexdiff suggests:
ii  cvs         2:1.12.13+real-28
ii  git         1:2.30.2-1
ii  subversion  1.14.1-3

-- no debconf information