Symfony version(s) affected: 4.3.2

Description
Message retried in failure transport dropped on exception

How to reproduce
I configured a failure transport on symfony messenger (like explain here: https://symfony.com/blog/new-in-symfony-4-3-messenger-failure-transport)
I throw an error on my handler, the message is retried 3 times, and then sent to the failure transport.

Then, I retry the failed message with bin/console messenger:consume failed or bin/console messenger:failed:retry {id}.
The message handling fail again and the message is dropped.

Is it the normal behaviour ? Or is it a bug ?