In my example I have 2 versions both workers are running simultaneously
1.0
2.0
And everything is working as expected the ExistingWorkflows keep being executed on old workers and all the new ones go to the new 
Except for 1 thing I cant understand how can I know for sure that I can kill 1.0 workers?
Running this command:
temporal task-queue get-build-id-reachability --build-id=1.0
I got:
1.0 pizza-queue [ExistingWorkflows]
But there are no workflows waiting for queue 1 they are all complete
What am I missing is this a bug?
Is there another way to be sure I can kill worker 1.0?
