quarto preview hangs before starting re-execution after interrupting execution during previous quarto preview

Bug description

Hello! I am not sure where exactly to put this or exactly what to title it.

I am experiencing an issue where if I Crtl+C out of an actively re-rendering quarto preview during cell execution, I then seemingly can't restart the preview?

For example, lets say that I have a Quarto Markdown file with 8 Python cells within. I am running quarto preview on the file and, on file save / re-render / re-execute trigger, if I notice that one of the cells is taking a long time to compute, I try to stop the re-render / re-execute while it is still processing to fix the issue. When I fix the issue and then try to relaunch the quarto preview the process will simply hang for a good few minutes.

I have tried clearing the _build the .quarto and other generated files. I have even tried clearing the quarto log files in Application Support/quarto but nothing seems to work other than just "waiting for a few minutes" and then trying again. Which I don't really understand how or why that would work either.

I think then some documentation or guidance would be best.

Steps to reproduce

No response

Expected behavior

I can interrupt quarto preview re-execution on save and then start quarto preview again without waiting for too long.

Actual behavior

quarto preview takes a long time to run after prior execution interruption .

Your environment

• OS: MacOS Sonoma 14.3
• Python: 3.12

Quarto check output

quarto check
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.2.0: OK
      Dart Sass version 1.58.3: OK
      Deno version 1.41.0: OK
      Typst version 0.11.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.5.57
      Path: /Users/evamaxfield/micromamba/envs/rs-graph/bin

[✓] Checking tools....................OK
      TinyTeX: v2024.03.13
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: TinyTex
      Path: /Users/evamaxfield/Library/TinyTeX/bin/universal-darwin
      Version: 2024

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

[✓] Checking Python 3 installation....OK
      Version: 3.12.7 (Conda)
      Path: /Users/evamaxfield/micromamba/envs/rs-graph/bin/python
      Jupyter: 5.7.2
      Kernels: python3

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

[✓] Checking R installation...........(None)

      Unable to locate an installed version of R.
      Install R from https://cloud.r-project.org/

(rs-graph)

Start with the quarto preview entry point and reproduce the delay by interrupting a re-render during Python cell execution on macOS. Compare a fresh preview with one restarted after interruption; done means preview restarts promptly, or the required cleanup and recovery guidance is documented.