fix: Fix creation timing for local participant. (livekit#749)

Author: cloudwebrtc

lib/src/core/room.dart

@@ -668,6 +668,14 @@ class Room extends DisposableChangeNotifier with EventsEmittable<RoomEvent> {
     // trigger change notifier only if list of participants membership is changed
     var hasChanged = false;
     for (final info in updates) {
+      // The local participant is not ready yet, waiting for the
+      // `RoomConnectedEvent` to create the local participant.
+      if (_localParticipant == null) {
+        await events.waitFor<RoomConnectedEvent>(
+          duration: const Duration(seconds: 10),
+        );
+      }
+
       if (localParticipant?.identity == info.identity) {
         await localParticipant?.updateFromInfo(info);
         continue;

lib/src/participant/participant.dart

@@ -200,6 +200,7 @@ abstract class Participant<T extends TrackPublication>
 
   @internal
   Future<bool> updateFromInfo(lk_models.ParticipantInfo info) async {
+    logger.fine('LocalParticipant.updateFromInfo(info: $info)');
     if (_participantInfo != null &&
         _participantInfo!.sid == info.sid &&
         _participantInfo!.version > info.version) {