Hello, I am wondering how long the Kafka Spout retains a reference to messages that are in progress but have not been acked. I have a situation where I am getting no failed messages in the UI but getting many retries when the topology is restarted. I am wondering if the Kafka Spout might be forgetting about these messages by the time the ack is coming back. The processing of the message can take up to 5 hours in some cases so the timeout is set to this duration. Thanks, Jason
