Env vars set from a Prefect secret in prefect.yaml are showing up under the deployment configuration in the UI

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Bug summary

I'm setting an environment variable in my prefect.yaml via a series of definitions:

definitions:
  work_pools:
    work_pool: &work_pool
      name: my-ecs-pool
      work_queue_name:
      job_variables: &work_pool_job_variables
        env: &work_pool_env_variables
          REDSHIFT_PW: "{{ prefect.blocks.secret.password }}"

When I deploy my flow and check under the Configuration tab for the deployment, I see the raw value of my secret.

Reproduction

definitions:
  work_pools:
    work_pool: &work_pool
      name: my-ecs-pool
      work_queue_name:
      job_variables: &work_pool_job_variables
        env: &work_pool_env_variables
          REDSHIFT_PW: "{{ prefect.blocks.secret.password }}"

deployments:
  - name: test
    version:
    tags:
      - test
    description:
    entrypoint: flows/flow_elt.py:elt_flow
    work_pool: *work_pool_stg

Error

No response

Versions

2.16.8

Additional context