dxf export chinese character outline intersection not align on the outline

[G1213123]

dxf export relies on import module paper.js to calculate the path outline.
Paper.js has reports for path boolean operation that is not correct.
https://github.com/paperjs/paper.js/issues/2082
https://github.com/paperjs/paper.js/issues/2082
https://github.com/paperjs/paper.js/issues/2096