Comment 19 for bug 1818260

Michael,

Looks like those runs are on stable. So here is the stable back-port of the trivial fix which should unblock you:
https://review.opendev.org/#/c/733285/

Also this is in next already: cs:~openstack-charmers-next/rabbitmq-server-369

For the completeness, I am in the process of making the forget_cluster_node an action so that it is never called during hook executions. This will stay in master until the 20.08 release:
https://review.opendev.org/#/c/732928/