Textfield bug

[antonioannunziata28]

Steps to reproduce

Steps:

1. Open this link to live example: (required)
2. If I add a mui textfield id containing _ in the string the textfield view is bugged showing a double border
3. I'm not able to compile this script in stackblitz environment

Current behavior

No response

Expected behavior

No response

Context

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Your environment

npx @mui/envinfo

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: Textfield, React textfield, visual bug textfield, mui textfield

[mj12albert]

@antonioannunziata28 I don't think it has anything to do with the id, probably you have other style somewhere that's causing this?

Here's a working stackblitz: https://stackblitz.com/edit/github-3l5m8zu6?file=src%2FApp.tsx