Polyglot Notebook: [DevExE2E][Regression]After saving the newly created .dib file, duplicate Untitled-1.dib file will be shown in VS Code.

[v-yifengmiao]

Describe the bug

After saving the newly created .dib file, duplicate Untitled-1.dib file will be shown in VS Code.

Note: 1. It's a regression issue. We doesn't repro when running these cells on - VSCodeUserSetup-x64-1.95.3 + dotnet-interactive-vscode-1.0.5602011.vsix + dotnet-sdk-8.0.404-win-x64.

Detailed Repro Build info:

VSCodeSetup-x64-1.96.2 + dotnet-interactive-vscode-1.0.5611011.vsix + dotnet-sdk-8.0.404-win-x64

Version: 1.96.2 (system setup)
Commit: fabdb6a30b49f79a7aba0f2ad9df9b399473380f
Date: 2024-12-19T10:22:47.216Z
Electron: 32.2.6
ElectronBuildId: 10629634
Chromium: 128.0.6613.186
Node.js: 20.18.1
V8: 12.8.374.38-electron.0
OS: Windows_NT x64 10.0.26100

Build link: https://artprodcus3.artifacts.visualstudio.com/Ab55de4ed-4b5a-4215-a8e4-0a0a5f71e7d8/7ea9116e-9fac-403d-b258-b31fcf1bb293/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2RuY2VuZy9wcm9qZWN0SWQvN2VhOTExNmUtOWZhYy00MDNkLWIyNTgtYjMxZmNmMWJiMjkzL2J1aWxkSWQvMjU5OTUwNS9hcnRpZmFjdE5hbWUvdnNjb2Rl0/content?format=file&subPath=%2Finsiders%2Fdotnet-interactive-vscode-1.0.5611011.vsix

Steps:

1. Ctrl+Shift+P => "Polyglot Notebook: Create new blank notebook"
2. Select "Create as .dib"
3. Select "F#"
4. Set the cell contents to 1+1 and execute.
5. Save the .dib file

Expected Results:

Save successfully and there will be only one Untitled-1.dib file in VS Code.

Actual Results:

After saving the newly created .dib file, duplicate Untitled-1.dib file will be shown in VS Code.

Which version of .NET Interactive are you using? (In a notebook, run the #!about magic command. ):

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