files.autoGuessEncoding is wrong with utf-8 chinese

[MxDany]

• VSCode Version:
  版本: 1.40.2 (user setup)
  提交: f359dd6
  日期: 2019-11-25T14:54:45.096Z
  Electron: 6.1.5
  Chrome: 76.0.3809.146
  Node.js: 12.4.0
  V8: 7.6.303.31-electron.0
  OS: Windows_NT x64 10.0.17134
• OS Version:

Steps to Reproduce:

1. set "files.autoGuessEncoding": true, create a 'go' file, such as 'main.go'

2. open it in 'utf-8' encode

3. input the following code:
   package main
   import (
   "fmt"
   )
   func main() {
   fmt.Println("hello 世界")
   }
   

4. close 'main.go' file

5. reopen it, it's encoding will be 'Windows 1252' Instead of 'utf-8'
   

Does this issue occur when all extensions are disabled?: Yes

[MxDany]

oh, not all the 'utf-8' file with Chinese characters are garbled, you have to enter the same code as above, and it will be occur.

[vscodebot]

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!