sandbox.restore() does not work on static members of a function or class

Describe the bug The documentation says, that we can stub all methods of a object by using sinon.stub(obj) https://sinonjs.org/releases/latest/stubs/#var-stub--sinonstubobj

This works great for objects and also for classes.

It also works for sandbox.stub(obj)

What doesn't work, is to restore the methods of a class by using sandbox.restore()

To Reproduce

This block works:

const sinon = require('sinon');
const sandbox = sinon.createSandbox();

console.log('stub(obj)')
let i = 1;

const myTest = {
  test: (value) => {
    return value;
  }
}

console.log(myTest.test(i++));
sandbox.stub(myTest);
console.log(myTest.test(i++));
sandbox.restore();
console.log(myTest.test(i++));
sandbox.stub(myTest);
console.log(myTest.test(i++));
sandbox.restore();
console.log(myTest.test(i++));

The output is:

stub(obj)
1
undefined
3
undefined
5

This one doesn't:

const sinon = require('sinon');
const sandbox = sinon.createSandbox();

console.log('stub(class)')
let i = 1;

class MyTest {
  static test(value) {
    return value;
  }
}

console.log(MyTest.test(i++));
sandbox.stub(MyTest);
console.log(MyTest.test(i++));
sandbox.restore();
console.log(MyTest.test(i++));
sandbox.stub(MyTest);
console.log(MyTest.test(i++));
sandbox.restore();
console.log(MyTest.test(i++));

The output is:

stub(class)
1
undefined
undefined
./node_modules/sinon/lib/sinon/util/core/wrap-method.js:82
            throw error;
            ^

TypeError: Attempted to wrap test which is already wrapped
...

Expected behavior It would be great if sandbox.restore() would also restore all methods of a class and not only of a object.

Context (please complete the following information):

• Library version: 11.1.1
• Environment: Linux - node v14.16.0