The first version has some limitations: * you need to force edit lock (XWIKI-24371) * -the effective author for the collaboration session is not computed- * no auto-save (XWIKI-24372) * it's still using the old edit form toolbar, not the new realtime toolbar (that CKEditor is using) XWIKI-24373 * macro output is included in the synchronization (XWIKI-24374) * partial clustering support: the state is synchronized between cluster nodes when all nodes are up, but there is no synchronization performed when a node is restarted or reconnected (we need to add custom events for this and ask the cluster leader to give the collaboration state) XWIKI-24375 * the Yjs WebSocket doesn't keep an authoritative Yjs document because it's not easy to use Yjs API server-side in Java; in order to perform the initial sync from the Yjs protocol, when a new client connects, it records all update messages and replays them to connecting users; this works, but it's far from optimal: instead of sending only the diff (missing changes) we basically send all changes; besides bandwidth and connection time, this could also take server-side memory for collaboration sessions with a long life.
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