camel-kafka: possible corruption of idempotency messages when using KafkaIdempotentRepository

FakeDataProducer.javaMessageLossReproducer.javaI noticed that when using the KafkaIdempotentRepository, sometimes it seems that it is losing or corrupting the ID information, causing loss of messages.

When reading the topic used for publishing the idempotency data with kafkacat I get:

ERROR: Failed to format message in fake-data-inserts [1] at offset 39: expected key end-of-input, but 2 bytes remaining : terminating

As a result, this causes the loss of messages because the consumers cannot go further than the corrupted record.

I found this while using Camel K and Strimzi (on a setup with 3 Kafkas using 1 topic with 3 partitions).

I couldn't test w/ 3.12 yet, but I suspect it would also have the same problem.