GET /api/deprecated-features/used returns an empty state field

[michaelklishin]

Describe the bug

#14229 has introduced a regression in 4.1.3:

GET /api/deprecated-features/used returns an empty state field/

Reproduction steps

1. Declare a transient classic queue
2. curl -s -u guest:guest -X GET http://localhost:15672/api/deprecated-features/used | jq
3. Inspect the response

Expected behavior

Either the state field should be set correctly or skipped.

For comparison, here is the 4.1.2 output:

[
  {
    "name": "transient_nonexcl_queues",
    "desc": "",
    "deprecation_phase": "permitted_by_default",
    "doc_url": "https://blog.rabbitmq.com/posts/2021/08/4.0-deprecation-announcements/#removal-of-transient-non-exclusive-queues",
    "provided_by": "rabbit"
  }
]

Additional context

No response

[JimmyWang6]

Hi @michaelklishin，If you haven‘ start to handle this issue, I think maybe I could help, thanks.

[michaelklishin]

@JimmyWang6 feel free to take a look.

Note that we now require all new contributors to sign a CLA, and the process is not as nice as it could have been (we are working on adopting a signing service if legal allows us to). Sorry.

[JimmyWang6]

@michaelklishin
Thanks for your clarification. I will sign the CLA via email later :)

[bas0N]

Hi @michaelklishin,
I’ve sent the email to request the CLA and am waiting for the signing link. Happy to take this on and create a PR once it’s approved -feel free to assign me, thanks!

[michaelklishin]

@bas0N I have sent you a signing request. Thank you.

[bas0N]

@michaelklishin Signed, thanks- I’ll update you soon

[michaelklishin]

Addressed by @bas0N in #15042.