Wrong Title Slide in Jupyter Notebooks when using revealjs format

[AlbertRapp]

Bug description

When using a Python code chunk inside revealjs slides that don't use the title YAML header, a wrong title slide is created using the first title after the first code chunk.

Steps to reproduce

Without a Python code chunk the order of the slides in this mini slide deck is as expected. ie. Slide 1, Slide2, Slide3

---
format: revealjs
---


# Slide 1

# Slide 2

# Slide 3

Once a Python Code chunk is inserted into Slide 1, there will appear a "Slide 2" centered title slide in front of Slide 1.

---
format: revealjs
---


# Slide 1

```{python}

```

# Slide 2

# Slide 3

Actual behavior

Slide order gets messed up

Expected behavior

Slide order should remain the same even with Python code chunk present

Your environment

Quarto Version: 1.7.24
Python Version: 3.10.12

Positron Version: 2025.03.0 build 116
Code - OSS Version: 1.96.0
Commit: 7f0f93873e8b24c9f393bb3586724f4783c5e72c
Date: 2025-03-01T18:48:08.166Z
Electron: 32.2.6
Chromium: 128.0.6613.186
Node.js: 20.18.1
V8: 12.8.374.38-electron.0
OS: Linux x64 6.8.0-57-generic

Quarto check output

Quarto 1.7.24
[✓] Checking environment information...
      Quarto cache location: /home/albert/.cache/quarto
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.6.3: OK
      Dart Sass version 1.85.1: OK
      Deno version 1.46.3: OK
      Typst version 0.13.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.7.24
      Path: /opt/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (not installed)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: Installation From Path
      Path: /usr/bin
      Version: 2021

[✓] Checking Chrome Headless....................OK
      Using: Chrome found on system
      Path: /usr/bin/google-chrome
      Source: PATH

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.10.12
      Path: /bin/python3
      Jupyter: 5.5.0
      Kernels: python3

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
      Version: 4.4.3
      Path: /usr/lib/R
      LibPaths:
        - /home/albert/R/x86_64-pc-linux-gnu-library/4.4
        - /usr/local/lib/R/site-library
        - /usr/lib/R/site-library
        - /usr/lib/R/library
      knitr: 1.49
      rmarkdown: 2.29

[✓] Checking Knitr engine render......OK

[cscheid]

Duplicate of #12440