`editor.suggest.preview` cause inline suggestion preview wrong

[tjx666]

enable settings:

{
    "editor.suggest.preview": true
}

test code:

const abcdefg = 'abcdefg';
console.log(abc);

expect suggestion preview show abcdefg, but abcdefgefg:

disable setting editor.suggest.preview works fine, I also test github copilot no this issue.

version:

Version: 0.40.3
VSCode Version: 1.91.1
Commit: 2804893a83ef162ae6c48e8254717e25c7c7c510
Date: 2024-08-29T17:42:50.254Z
Electron: 29.4.0
ElectronBuildId: undefined
Chromium: 122.0.6261.156
Node.js: 20.9.0
V8: 12.2.281.27-electron.0
OS: Darwin arm64 23.6.0

https://github.com/user-attachments/assets/ce724dec-2bc1-4efb-82c3-ea269aedc277