[material-ui][Text Field] Warning about missing id/name with the multiline prop

[kcaddell]

Steps to reproduce

Link to live example: (required)

Steps:

1. Navigate here - https://mui.com/material-ui/react-text-field/#multiline
2. Open the debugger tools
3. Open the console and view the issues tab
4. 
5. Open the 'A form field element has neither an id nor a name attribute.' and click the first 'violating node'
6. Notice the 2nd textarea dom element with the missing id/name attributes
   

Current behavior

Currently, MUI renders 2 textarea dom elements for each multiline textfield/input.
The 1st textarea component contains the id/name attribute as expected.
The 2nd textarea (hidden) component is missing id/name attributes which raises a browser issue/warning

Expected behavior

Both textarea dom components should contain unique id/name attributes

Context

Trying to keep the browser issues/warnings to a minimum.

Your environment

npx @mui/envinfo

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

Search keywords: TextField multiline warning missing id

[FurkanKarakas]

I can confirm the same issue. Removing the multiline prop makes this error vanish.

[mj12albert]

Similar to #38869

It's a harmless warning, the hidden textarea is required to provide the autosize features.

The warning doesn't affect a11y or actual UX as it's both visually hidden and aria-hidden

However we can't provide an artificial id or name to appease Chrome as it would break form submission behavior: #40128