### Bug description

I am trying to edit the title slide layout for revealjs output using the title-slide.html partial. However, quarto complains that only title-block.html is acceptable. This is not the behavior that the [guide](https://quarto.org/docs/journals/templates.html#revealjs-partials) describes. 

This example ends up in the error message:

```
---
title: "Title"
subtitle: "Subtitle"
author: "Author"
format:
  revealjs:
    template-partials:
      - title-slide.html
---

## A minimal working example

::: {.callout-note }
## An MWE
- should be fully functional
- should be minimal
:::

```
The error says
```
ERROR: The format 'revealjs' only supports the following partials:
metadata.html
title-block.html
toc.html

Please provide one or more of these partials.

Error: The format 'revealjs' only supports the following partials:
metadata.html
title-block.html
toc.html

Please provide one or more of these partials.
    at runPandoc (file:///Applications/quarto/bin/quarto.js:66010:31)
    at async renderPandoc (file:///Applications/quarto/bin/quarto.js:66526:26)
    at async Object.onRender (file:///Applications/quarto/bin/quarto.js:77072:32)
    at async renderFiles (file:///Applications/quarto/bin/quarto.js:76455:21)
    at async render (file:///Applications/quarto/bin/quarto.js:76781:20)
    at async renderForPreview (file:///Applications/quarto/bin/quarto.js:87446:26)
    at async render1 (file:///Applications/quarto/bin/quarto.js:87338:20)
    at async preview (file:///Applications/quarto/bin/quarto.js:87344:20)
    at async Command.fn (file:///Applications/quarto/bin/quarto.js:88492:9)
    at async Command.execute (file:///Applications/quarto/bin/quarto.js:2739:13)

```

I am running quarto from the command line (`quarto preview file.qmd`) on macOS12.6.1.

If I provide `title-block.html`, there is no error message.
2022-11-08T13:40:14Z
mtthsdzwn
bug needs-repro
closed
revealjs partials: title-slide.html not accepted.
https://github.com/quarto-dev/quarto-cli/issues/3240