OS process not terminated when the `rterm` is closed

[mihaiconstantin]

Describe the bug
When closing an R terminal, the associated process is not terminated.

To Reproduce
Open an R terminal in VS Code, evaluate something then close it. Repeat this, then check the process monitor.

setting.json config

{
    "r.bracketedPaste": true,
    "r.rterm.windows": "C:\\Users\\const\\AppData\\Local\\Programs\\Python\\Python39\\Scripts\\radian.exe",
    "r.rpath.windows": "C:\\Program Files\\R\\R-4.0.4\\bin\\R.exe",
    "r.lsp.debug": false,
    "r.lsp.diagnostics": false,
    "r.rterm.option": [
        "--no-save",
        "--no-restore",
        "--r-binary=C:\\Program Files\\R\\R-4.0.4\\bin\\R.exe"
    ],
    "r.sessionWatcher": true,
}

Expected behavior
When I close a terminal in VS Code the associated process to be terminated.

Screenshots

Environment:

I am running the following VS Code version:

Version: 1.55.2 (user setup)
Commit: 3c4e3df9e89829dce27b7b5c24508306b151f30d
Date: 2021-04-13T09:35:57.887Z
Electron: 11.3.0
Chrome: 87.0.4280.141
Node.js: 12.18.3
V8: 8.7.220.31-electron.0
OS: Windows_NT x64 10.0.19042

And the following R version:

platform       x86_64-w64-mingw32
arch           x86_64
os             mingw32
system         x86_64, mingw32
status
major          4
minor          0.4
year           2021
month          02
day            15
svn rev        80002
language       R
version.string R version 4.0.4 (2021-02-15)
nickname       Lost Library Book

[albertosantini]

Resolved with #941

[renkun-ken]

Reopen if the problem still persists.