message: Clear partial chunk on client leave
diff: @@ -896,8 +896,10 @@ export class Document extends EventEmitter {
  break;
  case MessageType.ClientLeave:
  - this.quorum.removeMember(message.contents);
  - this.emit("clientLeave", message.contents);
  + const clientId = message.contents as string;
  + this.clearPartialChunks(clientId);
  + this.quorum.removeMember(clientId);
  + this.emit("clientLeave", clientId);
  break;
  case MessageType.Propose:
  