### Bug description

I'm using Quarto on an M1 Mac (13.1 (22C65)) inside VS Code (1.75.1).

Quarto version 1.2.335

The front matter of the document is:

```
format:
    pdf:
        toc: true
        toc-depth: 2
        number-sections: true
        number-depth: 3
        colorlinks: true
        lof: true
        lot: true
csl: mike-fs-harvard.csl
bibliography: bib.bib
papersize: a4
```

The .csl file is modified in only one aspect - using the Zotero visual editor - to add the "entry-spacing" value. This value sits inside the <bibliography> tag:

```
<bibliography et-al-min="5" et-al-use-first="4" entry-spacing="4" hanging-indent="true">
```

Whatever the value is set to, the spacing between the bibliography entries does not change...it is supposed to, but it doesn't.

I'm rendering to PDF using the "Render" button in VS Code.

Other values such as the "hanging-indent" value do work.

It seems like a bug.

The .zip contains a sample test.qmd file, a bib.bib file and the test.csl file.

The bibliography entries should show 4 lines spacing between them...they show 1.
 

[test-quarto-csl.zip](https://github.com/quarto-dev/quarto-cli/files/10845718/test-quarto-csl.zip)


### Checklist

- [X] Please include a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
- [X] Please [format your issue](https://quarto.org/bug-reports.html#formatting-make-githubs-markdown-work-for-us) so it is easier for us to read the bug report.
- [X] Please document the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [X] Please document the operating system you're running. If on Linux, please provide the specific distribution.
dragonstyle
2023-02-28T01:37:45Z
Zuline
bug upstream
v1.4
open
Quarto 1.2.335 not respecting CSL "entry-spacing" value
https://github.com/quarto-dev/quarto-cli/issues/4555