### Elasticsearch Version

main + all released versions back to 7.9

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

n/a

### Problem Description

It was observed that some transforms behaved badly after the update of **another** (unrelated) transform.

### Steps to Reproduce

1. Update the settings of one transform
2. Observe how these settings get effective for **another** transform

### Logs (if relevant)

_No response_
x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/transform/action/UpdateTransformActionRequestTests.java
@Override
    protected Writeable.Reader<Request> instanceReader() {
        return Request::new;
    }
    @Override
    protected Request createTestInstance() {
        Request request = new Request(
            randomTransformConfigUpdate(),
            randomAlphaOfLength(10),
            randomBoolean(),
            TimeValue.parseTimeValue(randomTimeValue(), "timeout")
        );
        if (randomBoolean()) {
            request.setConfig(TransformConfigTests.randomTransformConfig());
        }
        if (randomBoolean()) {
            request.setAuthState(AuthorizationStateTests.randomAuthorizationState());
        }
        return request;
    }
    @Override
    protected Request mutateInstance(Request instance) {
        String id = instance.getId();
        TransformConfigUpdate update = instance.getUpdate();