Comment 8 for bug 1578658

Why the bug happens?

Since hiera depends on a deployment stage [deploy_start]:
- id: hiera
  type: puppet
  version: 2.1.0
  groups: [primary-controller, controller, cinder, cinder-block-device,
    cinder-vmware, compute, ceph-osd, primary-mongo, mongo, virt, ironic]
  requires: [deploy_start]

These stages are stripped during limited tasks deployment when --end TASK or --start TASK parameters are given. As a result, hiera task has no upstream dependecies and is logically executed first.