Brief outline of the question

The bidi looks would interupt the \ctexset's format with ctex-kit bundle.

See the example below.

Check/indicate

• Relevant to the bidi package
• The bidi package issue tracker has been searched for similar issues?
• The xepersian package issue tracker has been searched for similar issues?
• Links to <tex.stackexchange.com> discussion if appropriate
• Links to <qa.parsilatex.com> discussion if appropriate

Minimal example

case 1. without bidi:

\documentclass[fontset=fandol,openany]{ctexbook}
% \usepackage{bidi}
\ctexset{
    chapter/name={第,章},
    section/name={第,节}
}
\begin{document}

\chapter{开始123}
\section{测试456}

\chapter{开始123}
\section{测试456}

\end{document}

case 2. with bidi:

\documentclass[fontset=fandol,openany]{ctexbook}
\usepackage{bidi}
\ctexset{
    chapter/name={第,章},
    section/name={第,节}
}
\begin{document}

\chapter{开始123}
\section{测试456}

\chapter{开始123}
\section{测试456}

\end{document}

The \ctexset's config was reverted.

Expected behavior

The \chapter's config by \ctexset should NOT be overwritten.

Is that possible for bidi to support ctex-package?

Log and PDF files

mwe.log

mwe.pdf