Ctrl+C/Ctrl+V on empty selection no longer duplicates line

[bpasero]

Steps to Reproduce:

1. open https://github.com/microsoft/vscode/blob/6600b07e5c619c98bf1cdb2984c3f5f901fc9952/extensions/vscode-api-tests/src/singlefolder-tests/workspace.fs.test.ts#L269
2. click into the strictEqual somewhere without selecting
3. Ctrl+C/Ctrl+V

=> 🐛

Bisect: fe4d6a8...2ef2dbd

[aiday-mar]

Hi thank you for filing this issue. I tested on the given file and the given commit. The pasted text looks correct? I am not sure if I quite understood the issue.

Screen.Recording.2025-02-19.at.09.43.32.mov

[0x78f1935]

I don't know why,.. but I just drop this here.

#240127

What is happening with copy/paste??? It's messed up since 1.97.0...

[aiday-mar]

Hi @0x78f1935 thank you for filing this issue. I am not sure if these are related as in your case, you are copying from the debug hover, the current issue is about the core editor. Thank you for letting me know however!

[0x78f1935]

Hi @aiday-mar , No problem! I have seen more issues about copy paste in various sections, especially after 1.97.0. I'm also not sure if those are related but it definitely stands out that there is an issue with how copy/paste is being handled within VSC after 1.97.0.

[bpasero]

@aiday-mar the bug is that with empty selection the line should duplicate and not break in the middle.

[bpasero]

Caused by ae77c3f

[mjbvz]

I can only repo in large projects. I suspect this is timing related. ae77c3f makes it so that you can hit this issue more often if TS is slow, but it could have happened before too

Looking into a fix