hocuspocus: onCreateDocument does not have the client document's data

Description

onCreateDocument does not have the initial value from the client

Steps to reproduce the bug

1. update a document in a client
2. start the server
3. see an empty value in onCreateDocument. then that value shows up in onChange immediately afterwards.

@hocuspocus/server": "^1.0.0-alpha.53

import { Server } from "@hocuspocus/server";

const hocuspocus = Server.configure({
  port: 1234,

  async onCreateDocument(data) {
    console.log("create is empty:", data.document.isEmpty("monaco"));
    console.log("create value:", data.document.getText("monaco").toString());
    return data.document;
  },

  async onChange(data) {
    console.log("change is empty:", data.document.isEmpty("monaco"));
    console.log("change value:", data.document.getText("monaco").toString());
  },
});

hocuspocus.listen().then(() => console.log("started"));

Expected behavior

onCreateDocument should have the value

Screenshot, video, or GIF