[DataGrid] Broken "start editing" integration with Korean

[CrazyThink]

Steps to reproduce

Link to live example: https://codesandbox.io/s/h8ctzn?file=/src/Demo.tsx

Steps:

1. Click on an empty cell and quickly enter Korean. (like ㅁㅁㅁㅁㅁ)

xenodochial-swartz-h8ctzn.-.CodeSandbox.-.Chrome.2023-10-31.09-13-34.mp4

Current behavior

aㅁㅁㅁㅁ

Expected behavior

ㅁㅁㅁㅁㅁ

Context

I get the value of aㅁㅁㅁㅁ, instead of ㅁㅁㅁㅁㅁ

Related issues
#4687

Your environment

npx @mui/envinfo

  System:
    OS: Windows 10 10.0.22621
  Binaries:
    Node: 20.4.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 3.6.3 - C:\Program Files\nodejs\yarn.CMD
    npm: 9.7.2 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: Not Found // 118.0.5993.118
    Edge: Chromium (117.0.2045.31)

Search keywords: start editing

[lacoony1205]

Hi. I also reported the same issue last October. How's it going?

#10788

[csk4765551]

This issue has been found not only in the Korean language but also in Japanese and Chinese environments. Could you please address this problem?

#10788

[lacoony1205]

It's been almost a year since this issue was reported, but it doesn't seem to be progressing and is still recurring. It's a major issue in environments where Korean, Chinese, Japanese, etc. are used.