Do not show "autopep8 or black" formatting notification with default formatter config

[thernstig]

With the config below, I have changed the default formatter to "charliermarsh.ruff". The only extensions installed in VS Code are the Python, Pylance and Ruff extension.

Yet when I saved a .py file I got a notification saying something like:

"Do you want to use autopep8 or black for formatting?"

I could also opt to chose "Do not show again" which I did, so I cannot show paste a screenshot of the message.

Why do I get this notification, considering I configured `"editor.defaultFormatter": "charliermarsh.ruff" for Python?

{
  "editor.codeActionsOnSave": {
    "source.organizeImports": "always",
    "source.fixAll.ruff": "always"
  },
  "editor.formatOnPaste": true,
  "editor.formatOnSave": true,
  "eslint.format.enable": true,
  "[python]": {
    "editor.defaultFormatter": "charliermarsh.ruff"
  },
  "python.analysis.typeCheckingMode": "basic",
  "python.analysis.completeFunctionParens": true,
  "python.defaultInterpreterPath": "${workspaceFolder}/.venv/bin/python",
}

[karthiknadig]

@thernstig Please try the pre-release version of the python extension. This should be addressed there.