Incorrect faked bold font in xetex

[stone-zeng]

When use tikz node immediately after a faked bold text, the second node (and the nodes afterwards) will be emboldened.

LaTeX version (with fontspec, compiled with xelatex):

\documentclass{article}
\usepackage{tikz,fontspec}
\setmainfont[AutoFakeBold]{Times New Roman}
\begin{document}
\textbf{a}
\tikz{\node at (0,0) {A}; \node at (0.5,0) {B}; \node at (1,0) {C};}
\end{document}

Plain TeX version (compiled with xetex):

% Workaround for #675
\catcode`@=11
\def\XC@tgt@mod#1{#1}
\def\XC@sdef#1#2{\edef#1{#2}}
\catcode`@=12
\input tikz.tex

\font\tmrb="[XITS-Regular.otf]:embolden=5" at 10pt
{\tmrb a} \tikz{\node at (0,0) {A}; \node at (0.5,0) {B};}
\bye

See CTeX-org/ctex-kit#440.

[hmenke]

This might be a bug in XeTeX. I inspected the resulting XDV of

\input pgf.tex
\font\tmrb="[XITS-Regular.otf]:embolden=5" at 10pt
{\tmrb a}
\pgfpicture
\pgfnode{rectangle}{center}{A}{}{}
\pgftransformshift{\pgfpoint{0.5cm}{0cm}}
\pgfnode{rectangle}{center}{B}{}{}
\endpgfpicture
\bye

and I can't find anything suspicious in terms of PDF literals. The stack seems to be balanced, i.e. same number of q and Q in the correct locations.

[aminophen]

This might be a bug in XeTeX.

I transferred this report to https://tug.org/pipermail/dvipdfmx/2019-June/000014.html

[hmenke]

@aminophen Thank you very much for taking care of this. From the linked thread I understand that this is a problem in dvipdfmx rather than PGF. I'm closing this for now.

[aminophen]

It seems that the problem is fixed in dvipdfm-x r51507.

[stone-zeng]

Thanks!

[aminophen]

In r53973, dvipdfmx restored the previous behavior due to

• https://tug.org/pipermail/tex-live/2020-February/044855.html

so the fake-bold problem reappeared.