I hope you don't mind me posting them in this thread, but I found another "quirk" relating to `lang:` setting in dates that have names of months (not just for books). I'm on windows, so maybe it's OS specific? Here's a MWE:

```markdown
---
title: "MWE"
lang: fr-FR
date: last-modified
date-format: "DD MMMM YYYY à HH:mm:ss Z"
---

Here's some text.
```

Rendering this in HTML or PDF will show a date that is not French (note "October" rather than "octobre"). 

> MWE
> DATE DE PUBLICATION
> 26 October 2022 à 09:59:56 -04:00
>
> Here’s some text.


The workaround is to drop the country from the language, e.g., `lang: fr` -- it's probably another bug with pandoc?

> MWE
> DATE DE PUBLICATION
> 26 octobre 2022 à 10:00:57 -04:00
> 
> Here’s some text.
dragonstyle
2022-10-26T21:22:21Z
dragonstyle
v1.3
closed
Implement fallback logic for loading date locales
https://github.com/quarto-dev/quarto-cli/issues/3059