When I set local maintenance on the self-hosted engine hypervisor host through   

the manager GUI it becomes stuck in state "Preparing for maintenance". The       

hosted engine virtual guest is automatically migrated because the HA broker is   

successfully set to maintenance mode=local. The host returns to state "Up" in    

the manager if I press button "Activate", but the column "Virtual Machines"      

continues to count the migrated VM. If I then reboot the host it reverts to      

state "Up" and the VM count no longer includes the vacated hosted engine, so I'm 

guessing it never *really* achieved state "Maintenance" even though the event    

log claims so immediately after the button is pressed. The condition persists    

after the reboot if the then-current hosted engine hypervisor host is again      

assigned to mode "Maintenance". I'm running 4.0.1, and I've tried restarting services