[Bug]: "Clear" / "Reload" button in CodeSandbox does not reset user edits to original sample code

Summary

Component: Interactive Code Sandbox

Steps to Reproduce:

1. Navigate to the "Treat state as read-only" section in the React documentation.
2. Modify the sample code inside the sandbox. Change:

position.x = e.clientX;
position.y = e.clientY;

to:

const p = { x: e.clientX, y: e.clientY };
setPosition(p);

3.Observe that the red dot starts following the cursor as expected.
4.Click the "Clear" or "Reload" button on the sandbox to undo the edits and restore the original code sample.

Expected Result:
The sandbox should revert to the original, unedited sample code (position.x = e.clientX), and the red dot should stop following the cursor.

Actual Result:
The red dot continues to follow the cursor despite triggering a reset.

Page

https://react.dev/learn/updating-objects-in-state

Details

Bắt đầu bằng cách tái hiện hành vi reset trong phần "Treat state as read-only" của react.dev/learn/updating-objects-in-state, sau đó lần theo luồng reset của Interactive Code Sandbox. Được xem là hoàn tất khi Clear hoặc Reload khôi phục mã mẫu ban đầu và chấm đỏ không còn đi theo con trỏ.