Jupyter extension creates countless empty ipynb (also creates "checkpoint" files after saving)

[edavidk7]

Environment data

• VS Code version: 1.57.1 (Universal)
• Jupyter Extension version (available under the Extensions sidebar): v2021.6.999662501
• Python Extension version (available under the Extensions sidebar): v2021.6.944021595
• OS (Windows | Mac | Linux distro) and version: macOS 11.4 Big Sur (Apple M1 platform)
• Python and/or Anaconda version: 3.8.10 (aarch64), 3.9.5 (aarch64) - homebrew
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Jupyter server running: Local

Expected behaviour

After saving changes in a jupyter notebook, only a single checkpoint file should be created

Actual behaviour

After saving changes in a jupyter notebook, multiple random files appear in both the directory of the jupyter notebook file and the checkpoints folder

Steps to reproduce:

1. Make changes to Jupyter notebook (adding a cell with print("Hello world") is enough)
2. run the cell
3. save changes
4. refresh folder view and see the "junk" files

Logs

Info 2021-07-02 12:35:50: Executing cell NotebookImport#26
Info 2021-07-02 12:35:50: Waiting for jupyter server and web panel ...
Info 2021-07-02 12:35:50: Checking for server existence.
Info 2021-07-02 12:35:50: Checking for server usability.
Info 2021-07-02 12:35:50: Server not usable (should ask for install now)
Error 2021-07-02 12:35:50: Exception attempting to start notebook:  [o [Error]: Jupyter cannot be started. Error attempting to locate jupyter: Select an Interpreter to start Jupyter
	at S.startServer (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:54:407589)
	at processTicksAndRejections (internal/process/task_queues.js:93:5)
	at async S.createServer (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:54:406884)
	at async connect (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:90:178208)
	at async D.ensureConnectionAndNotebookImpl (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:641568)
	at async D.ensureConnectionAndNotebook (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:639797)
	at async D.clearResult (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:635459)
	at async D.reexecuteCell (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:621723)
	at async D.reexecuteCells (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:618182)] {
  category: 'jupyterinstall',
  action: 'https://aka.ms/pyaiinstall',
  actionTitle: 'Get more help'
}
Info 2021-07-02 12:35:50: Exception executing cell NotebookImport#26:  [o [Error]: Jupyter cannot be started. Error attempting to locate jupyter: Select an Interpreter to start Jupyter
	at S.startServer (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:54:407589)
	at processTicksAndRejections (internal/process/task_queues.js:93:5)
	at async S.createServer (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:54:406884)
	at async connect (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:90:178208)
	at async D.ensureConnectionAndNotebookImpl (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:641568)
	at async D.ensureConnectionAndNotebook (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:639797)
	at async D.clearResult (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:635459)
	at async D.reexecuteCell (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:621723)
	at async D.reexecuteCells (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:618182)] {
  category: 'jupyterinstall',
  action: 'https://aka.ms/pyaiinstall',
  actionTitle: 'Get more help'
}
Info 2021-07-02 12:35:50: Finished executing cell NotebookImport#26
Info 2021-07-02 12:35:53: Cached data exists getEnvironmentVariables, <No Resource>
Info 2021-07-02 12:35:53: Cached data exists getEnvironmentVariables, <No Resource>
Info 2021-07-02 12:35:53: Process Execution: > /opt/homebrew/bin/python3 -c "import jupyter"
> /opt/homebrew/bin/python3 -c "import jupyter"
Info 2021-07-02 12:35:53: Process Execution: > /opt/homebrew/bin/python3 -c "import jupyter"
> /opt/homebrew/bin/python3 -c "import jupyter"
Info 2021-07-02 12:35:53: Process Execution: > /opt/homebrew/bin/python3 -c "import notebook"
> /opt/homebrew/bin/python3 -c "import notebook"
Info 2021-07-02 12:35:53: Process Execution: > /opt/homebrew/bin/python3 -c "import notebook"
> /opt/homebrew/bin/python3 -c "import notebook"
Info 2021-07-02 12:35:53: Cached data exists getEnvironmentVariables, <No Resource>
Info 2021-07-02 12:35:53: Process Execution: > /opt/homebrew/bin/python3 -m jupyter kernelspec --version
> /opt/homebrew/bin/python3 -m jupyter kernelspec --version
Info 2021-07-02 12:35:53: Process Execution: > /opt/homebrew/bin/python3 -m jupyter kernelspec --version
> /opt/homebrew/bin/python3 -m jupyter kernelspec --version
Error 2021-07-02 12:35:53: DataScience Error [o [Error]: Jupyter cannot be started. Error attempting to locate jupyter: Select an Interpreter to start Jupyter
	at S.startServer (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:54:407589)
	at processTicksAndRejections (internal/process/task_queues.js:93:5)
	at async S.createServer (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:54:406884)
	at async connect (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:90:178208)
	at async D.ensureConnectionAndNotebookImpl (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:641568)
	at async D.ensureConnectionAndNotebook (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:639797)
	at async D.clearResult (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:635459)
	at async D.reexecuteCell (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:621723)
	at async D.reexecuteCells (/Users/davidkorcak/.vscode/extensions/ms-toolsai.jupyter-2021.6.999662501/out/client/extension.js:37:618182)] {
  category: 'jupyterinstall',
  action: 'https://aka.ms/pyaiinstall',
  actionTitle: 'Get more help'
}
Info 2021-07-02 12:35:54: Cached data exists getEnvironmentVariables, <No Resource>
Info 2021-07-02 12:35:54: Creating daemon pool for /opt/homebrew/bin/python3 with env variables count 0
Info 2021-07-02 12:35:54: Process Execution: > /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
> /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
Info 2021-07-02 12:35:54: Process Execution: > /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
> /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
Info 2021-07-02 12:35:54: Process Execution: > /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
> /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
Info 2021-07-02 12:35:54: Process Execution: > /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
> /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
Info 2021-07-02 12:35:54: Process Execution: > /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
> /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
Info 2021-07-02 12:35:54: Process Execution: > /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v
> /opt/homebrew/bin/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.jupyter_daemon -v

More info

This bug DOES NOT manifest itself on my Windows 10 system running the same environment on x86 processor. Seems to be either macOS or macOS aarch64 exclusive. Also DOES NOT happen when using jupyter notebook web environment, only in VS Code. It has been reported multiple times already with no answers:
https://stackoverflow.com/questions/64259277/vscode-jupyter-server-generates-random-ipynb-files?r=SearchResults&s=1|66.8220
https://stackoverflow.com/questions/65239027/visual-studio-code-jupyter-interactive-how-to-disable-the-automatic-creation?r=SearchResults&s=3|54.7774

Screenshots

Before

After

[claudiaregio]

Thanks @edavidk7, will look into this soon. @rchiodo mentioned this could be related to raw kernel vs. non-raw kernel.
(Don't have support for raw kernel for M1 yet)

[LlamaLamp]

I have the same problem occurring on Ubuntu 20.04. VS Code and extension versions are all identical to @edavidk7

[yolios]

Same issure here. I am also running Ubuntu 20.04 (x86) with the same versions of VS Code and Jupyter extension as mentioned above.

[greazer]

Apparently, this is something we likely used to clean up? Seems like a regression.