Changed behavior of cleveref after \appendix

[muzimuzhi]

(First caught by a test in the ctex bundle, see log of its scheduled job.)

cleveref updates a set of internal commands at \appendix, especially the logic

            \ifx\cref@result\@empty%
              \def\cref@result{2147483647}%
            \else%
              \edef\cref@result{2147483647,\cref@result}%
            \fi%

is added to \H@refstepcounter.

This logic is now missing as \H@refstepcounter is not used in hyperref any more.

\documentclass{article}
\usepackage{hyperref}
\usepackage{cleveref}

\makeatletter
\def\test{\show\cref@currentlabel}
\makeatother

\begin{document}
\section{title}
\test

\appendix
\section{title}
\test
\end{document}

Loading cleveref only:

> \cref@currentlabel=macro:
->[section][1][]1.


> \cref@currentlabel=macro:
->[appendix][1][2147483647]A.

Loading both hyperref and cleveref:

> \cref@currentlabel=macro:
->[section][1][]1.


> \cref@currentlabel=macro:
->[section][1][]A. % <<< changed, "2147483647" is missing

[u-fischer]

Well the only idea I have to disable the hyperref patches in cleveref by claiming that implicit=false has been used. Could you fire your testsuite on it?

\documentclass{article}
\usepackage{hyperref}
\ExplSyntaxOn
\AddToHook{package/cleveref/before}{\clist_put_right:cn {[email protected]}{implicit=false}}
\ExplSyntaxOff
\usepackage{cleveref}

\makeatletter
\def\test{\show\cref@currentlabel}
\makeatother


\begin{document}
\section{title}
\test

\appendix
\section{title}
\test
\end{document}

[muzimuzhi]

\ExplSyntaxOn
\AddToHook{package/cleveref/before}{\clist_put_right:cn {[email protected]}{implicit=false}}
\ExplSyntaxOff

With this trick the ctex testsuite is passed. See muzimuzhi/ctex-kit@fa2feed.