cephadm: after downsizing mon service from 5 to 3 daemons, cephadm reports "stray" daemons
After having 5 mon/mgr daemons and then donsizin both services to 3 daemons list_servers, which is used to detect strays, falsely reported mon/mgr daemons on the hosts where mon/mgr daemons were removed from when downsizing the services https://pastebin.com/raw/qp631feA. Eventually, the listing of mgr services corrected itself but the stray "mon.vm-04" health warning stuck around until the mgr was restarted.
[ceph: root@vm-00 /]# ceph health detail
HEALTH_WARN 1 stray daemon(s) not managed by cephadm
[WRN] CEPHADM_STRAY_DAEMON: 1 stray daemon(s) not managed by cephadm
stray daemon mon.vm-04 on host vm-04 not managed by cephadm