How to reproduce:
1. deploy charm with `juju-managed-units` enabled; 2. updated controller to `d516a4aa7ac454571e28a4d0eeb93e89c4915e13` build.
How to reproduce:
1. deploy charm with `juju-managed- units` enabled; 571e28a4d0eeb93 e89c4915e13` build.
2. updated controller to `d516a4aa7ac454