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@mergify mergify bot commented Feb 27, 2024

This is an automatic backport of pull request #10623 done by Mergify.


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Fixes https://github.com/rabbitmq/rabbitmq-server/discussions/10620

Up to RabbitMQ 3.12:
* When an AMQP 0.9.1 publisher sends a message with P_basic.headers
  unset, RabbitMQ will deliver an AMQP 0.9.1 message with
  P_basic.headers unset.
* When an AMQP 0.9.1 publisher sends a message with P_basic.headers
  being an empty list ([]), RabbitMQ will deliver an AMQP 0.9.1 message with
  P_basic.headers being an empty list ([]).

In 3.13 including message containers, the 1st behaviour stayed the same
while the 2nd behaviour changed to:
* When an AMQP 0.9.1 publisher sends a message with P_basic.headers
  being an empty list ([]), RabbitMQ will deliver an AMQP 0.9.1 message with
  P_basic.headers unset.

This commit fixes this regression by using the same behaviour as in
3.12.

(cherry picked from commit 8a2a740)
@mergify mergify bot assigned ansd Feb 27, 2024
@michaelklishin michaelklishin added this to the 3.13.1 milestone Feb 27, 2024
@michaelklishin michaelklishin merged commit 008c2fa into v3.13.x Feb 27, 2024
@michaelklishin michaelklishin deleted the mergify/bp/v3.13.x/pr-10623 branch February 27, 2024 16:22
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2 participants