[Bug] Wrong syntax highlighting for yaml

[kenzyyang]

Reproducible in vscode.dev or in VS Code Desktop?

• [X] Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• [ ] Not reproducible in the monaco editor playground

Monaco Editor Playground Code

No response

Reproduction Steps

No response

Actual (Problematic) Behavior

Expected Behavior

In git

hello: world#wrong syntax higlighting,it's not comment
hello1: world #it's comment

Additional Context