Checkmk Werk 15732: ESX VM monitoring: Fix missing or stale `ESX Memory` service

ID: 15732 Title: ESX VM monitoring: Fix missing or stale `ESX Memory` service Component: Checks & agents Level: 1 Class: Bug fix Version: 2.3.0b1 When monitoring ESX VMs by running the VMware ESX special agent on a standalone ESX host (instead of a vCenter), the service mentioned above was not discovered or went stale if already discovered.