Clear/delete non-default properties of a processor with the NiFi REST API?

Question

I am using requests in python and am sending a PUT request to https://nifi:<port>/nifi-api/processors/{my-processor-id}, where pid is the id of the processor to be modified:

modify = requests.put(f"{nifi_api_url}/processors/{pid}", proxies=proxies, headers=headers, json=json_data, verify=False)

For json_data (which is the ProcessorEntity) I am passing in the following:

json_data = {
        "revision": {
            "version": revision_version
        }, 
        "component": {
            "id": pid,
            "config": {
                "properties": None
            }
        }
    }

(I have also tried passing in properties: {} to no avail.)

Passing in both None and {} do not delete any properties for some reason, whereas adding properties via the API works perfectly fine using this endpoint.