Comment 4 for bug 1943584

Reviewed: https://review.opendev.org/c/openstack/oslo.policy/+/808957
Committed: https://opendev.org/openstack/oslo.policy/commit/949289e094090757576f9251019e10d53af7a663
Submitter: "Zuul (22348)"
Branch: master

commit 949289e094090757576f9251019e10d53af7a663
Author: Mitya_Eremeev <email address hidden>
Date: Tue Sep 14 15:37:31 2021 +0300

    Rules in policy directory files can be deleted.

    Policy directory files can only add new rules or
    update existing rules in cache, but cannot return back
    loaded rules in memory to their default value.
    This incorrect behavior was fixed in the patch.

    Member "_loaded_files" of class Enforcer should keep
    list of loaded policy config files paths.
    In fact if the same file is changed many times
    then the same file path is added many times.
    If a file is deleted it's path not deleted from "_loaded_files".
    The member is very misleading and is not used in code.
    So this member was deleted in the patch because of
    above mentioned resons.

    Change-Id: I9ede38d8cf2ae968d3d8c0b1240bd6a51e6aa931
    Closes-Bug: 1943584