### Bug description

The number of the section is duplicated both in the table of contents and in the body.
Tested pdf engines: wkhtmltopdf, weasyprint, paged.js.

The following ipynb file
```
---
format: pdf
pdf-engine: wkhtmltopdf 
number-sections: true
---

# H1

## H2


```

Will produce this PDF file

![image](https://user-images.githubusercontent.com/1168223/200600350-a2ed67c9-0b4a-4182-a351-101ef49181d2.png)


Quarto version: 1.1.251
Ubuntu 22.10


2022-11-08T15:07:47Z
a0th
enhancement
Future
open
Duplicated number section when not using latex in PDF from ipynb
https://github.com/quarto-dev/quarto-cli/issues/3243