Comment 4 for bug 1909031

Reviewed: https://review.opendev.org/c/openstack/charm-rabbitmq-server/+/818879
Committed: https://opendev.org/openstack/charm-rabbitmq-server/commit/ccd11fdf9e801b5e3169c3482334a42101198042
Submitter: "Zuul (22348)"
Branch: master

commit ccd11fdf9e801b5e3169c3482334a42101198042
Author: Liam Young <email address hidden>
Date: Thu Nov 18 13:17:03 2021 +0000

    Check before applying plugin and perms changes

    Check that setting update is needed before applying a config
    update to the cluster. This is mainly applicable to
    rabbitmq-server > 3.8.2 which supports json output. If a
    parser is not available to extract the existing settings
    then the old behaviour of blindly applying the change
    is used.

    Closes-Bug: #1909031
    Change-Id: I9599f69cc11ea8d1a4e9d618aecdab4afe488d96