feat(replace-participant): Replace participant with same jwt in the conf

- update lib-jitsi-meet to version with support for replacing participant

react/features/lobby/components/AbstractKnockingParticipantList.js

@@ -71,6 +71,7 @@ export function mapStateToProps(state: Object): $Shape<Props> {
 
     return {
         _participants: knockingParticipants,
-        _visible: lobbyEnabled && isLocalParticipantModerator(state) && Boolean(knockingParticipants.length)
+        _visible: lobbyEnabled && isLocalParticipantModerator(state)
+          && Boolean(knockingParticipants && knockingParticipants.length)
     };
 }