[Bug]: Producer failed to retrieve record metadata when sending more than one batch in a request

[morenol]

What happened
When the request of producer has more than one batch.
The producer only sends back the base offset of the first batch. Therefore batch metadata is not resolved for the batches that are after the first one.

Expected behavior
record metadata in:

let produce_output = producer.send(RecordKey::NULL, value).await?;
let record_metadata = produce_output.wait().await?;

should not fail with : receiving from an empty and closed channel

How to reproduce it (as minimally and precisely as possible)
Steps to reproduce the behavior:

1. Run the command:
   fluvio topic create topicname
   fluvio produce topicname -f input.txt

with this file:
input.txt

[digikata]

The odd part is that TJs stat branch pr does not have the same problem if you add the --stats flag.

edit: #2424