Redundant error is shown

[sandy081]

Testing #98821

It occurred to me when I closed the editor and opened the notebook from problems panel. Cant repro it again but filed it incase you know why it happens.

[jrieken]

might be because the close event for a notebook is missing and then markers are't cleaned up

[jrieken]

This should now be fixed with #99142. Before, we would remove the project and create a new one, but we would never clean up markers...

[jrieken]

/duplicate of #99142

[vscode-triage-bot]

Thanks for creating this issue! We figured it's covering the same as another one we already have. Thus, we closed this one as a duplicate. You can search for existing issues here. See also our issue reporting guidelines.

Happy Coding!