Figures are generated in the directory in which the `.qmd` lives.
But in the context of a self-contained HTML, when including `.qmd` files from a subdirectory, images are not retrieved by the main document: `[WARNING] Could not fetch resource content/index_files/figure-html/fig2-1.png`

I tried setting `execute-dir: project`, but same result, _i.e._, the figure from the included `.qmd` is not found.

I found nothing in <https://quarto.org/docs/authoring/includes.html>, but I might have missed something.

```
quarto-cli#951
├── content
│   └── fig2.qmd
└── index.qmd
```

````
---
title: 'quarto-dev/quarto-cli#951'
author: Mickaël Canouil, *Ph.D.*
format:
  html:
    self-contained: true
---

## Figure

```{r}
#| label: fig1
plot(2)
```

{{< include content/fig2.qmd >}}

````

Example: <https://github.com/mcanouil/quarto-issues/tree/main/quarto-cli%23951>
Version: `0.9.433`
cscheid
2022-05-22T11:06:15Z
mcanouil
closed
Generated figures from an included `.qmd` are not found
https://github.com/quarto-dev/quarto-cli/issues/951