Values are modified in readonly mode when they are defined with oneOf

[cperotAxway]

Prerequisites

• I have searched the existing issues
• I understand that providing a SSCCE example is tremendously useful to the maintainers.
• I have read the documentation
• Ideally, I'm providing a sample JSFiddle, Codesandbox.io or preferably a shared playground link demonstrating the issue.

What theme are you using?

core

Version

5.x

Current Behavior

in readonly mode the dropdown for the oneOf is not disabled.
Changing the value there reset the fields.

Expected Behavior

dropdown should be disabled or at least fields should not be reset.

Steps To Reproduce

1. open this playground:

Playground readonly

2. switch the value in the dropdown to Option 2
3. switch back to Option 1
4. Values are reset

Environment

- OS: ubuntu 22.04
- Node: 18
- npm:10.8.3

Anything else?

No response