Deprecated rule logic does not work if the rule was deleted in policy directory.

[Mitya Eremeev]

The main policy file does not exist.
The policy directory is not empty.

1. define deprecated rule in policy directory
2. start a service
3. enforce policy
4. remove deprecated rule in policy directory
5. enforce policy

Actual result:
new default is applied to deprecated rule.

Expected result:
old and new defaults are applied to deprecated rule (OR logic)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/oslo.policy/+/844611

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/oslo.policy/+/844611
Committed: https://opendev.org/openstack/oslo.policy/commit/d80573c61254a2f8f371746bc678bd3b60f8a6a4
Submitter: "Zuul (22348)"
Branch: master

commit d80573c61254a2f8f371746bc678bd3b60f8a6a4
Author: Mitya_Eremeev <email address hidden>
Date: Mon Jun 6 13:17:51 2022 +0300

    Fix deprecated rule logic if the rule was deleted in policy directory.

    The bug scenario:
    - define deprecated rule in policy folder
    - start a service
    - enforce policies
    - remove the rule in policy folder
    - enforce policies

    New default is applied to the rule,
    but new and old defaults should be applied
    (OR logic)
    The patch fixes it.

    Closes-Bug: 1977549
    Change-Id: If11fe2da1163d6d3f16d133aeb207a055cf30de4

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/oslo.policy 4.2.0 release.