bug with hyperref/mdframed/TikZ/imakeidx with \fbox in section command

[Heiko Oberdiek]

Hello,

On 2021-09-14 15:15, Patrice Dumas wrote:
> Hello,
> 
> I found two bugs (I think) related to \fbox{} in section command
> (\chapter) in relatively precise cases in term of packages use,
> hyperref, mdframed with framemethod=TikZ and also imakeidx.

> The first case is with hyperref and mdframed with framemethod=TikZ and
> changing the order can prevent the failure.  The message is
> 
> ! Argument of \boxframe has an extra }.
> <inserted text>
>                  \par
> l.19 \chapter{chap \fbox{toto}}

Minimal example:

\documentclass{report}
\usepackage{tikz}
\usepackage{hyperref}
%\pdfstringdefDisableCommands{\let\fbox\relax}
\begin{document}
\chapter{Hello \fbox{World}}
\end{document}

Fix: Enable the line with \pdfstringdefDisableCommands.
This avoids the error with the redefinition of \fbox of TikZ
and warnings otherwise.

> The second case happens [...]

> l.23 \chapter{chap \fbox{toto}}

Maybe, this is fixed the same way as above.
Otherwise provide a minimal working example that shows the problem.

Yours sincerely
   Heiko