Summary

When at least two users are collaborating (for example using the WebrtcProvider) and a user selects all and deletes the document becomes empty. This triggers the PlaceholderExtension which creates a decoration node for the placeholder message. Typing (collaborative) becomes disabled in the editing user window until they hit enter. This is because the node position / selection is confused and YJS can't sync.

Steps to reproduce

"use client";

import React from "react";
import { YjsExtension } from "@remirror/extension-yjs";
import { WebrtcProvider } from "y-webrtc";
import * as Y from "yjs";
import {
  Remirror,
  ThemeProvider,
  useRemirror,
} from "@remirror/react";

const room = "test-placeholder-yjs";
const ydoc = new Y.Doc();
const provider = new WebrtcProvider(room, ydoc);

const extensions = () => [
  new YjsExtension({ getProvider: () => provider, disableUndo: true })  
];

const RemirrorPage = (): JSX.Element => {
  const { manager } = useRemirror({
    extensions,
    core: { excludeExtensions: ["history"] },
  });

  return (
    <ThemeProvider>
      <Remirror manager={manager} autoFocus autoRender="end">
      </Remirror>
    </ThemeProvider>
  );
};

export default RemirrorPage;

Expected results

After deleting the content of the document you should be able to immediately begin typing.

Actual results

User can't type until they press enter or another user inserts content collaboratively.

Possible Solution

1. Make it possible to remove the PlaceholderExtension from the ReactExtension core (excludePlaceholder or core: { excludeExtensions: ["history", "placeholder"] }).
2. Create a new option on the PlaceholderExtension called disabled. If the extension is disabled do not apply the decorations.
3. Implement the decoration as a Mark so it is shared (this seems very problematic and is probably not a good idea).

Screenshot(s)