Comment 2 for bug 1308407

To reproduce
  o configure nodepool with two labels
  - name: nodepool-fake2
    image: nodepool-fake2
    min-ready: 4
    providers:
      - name: fake-provider
  - name: nodepool-fake
    image: nodepool-fake
    min-ready: 1
    providers:
      - name: fake-provider

 o start max-servers servers
 o place them all in a hold state
   nodepool -c tools/fake.yaml list | grep ready | awk '{print $2}' | xargs -n 1 nodepool -c tools/fake.yaml hold

 o remove them all one at a time, waiting long enough between each delete for a delete/allocation cycle to take place
   for x in $(nodepool -c tools/fake.yaml list | grep hold | awk '{print $2}') ; do nodepool -c tools/fake.yaml delete $x ; sleep 120 ; nodepool -c tools/fake.yaml list | grep ready | awk '{print $2}' | xargs -n 1 nodepool -c tools/fake.yaml hold ; sleep 5 ; done

You should end up with only a single type of server being allocated