Description of problem:

If there are ChangeMembersDomainOp pending operations it does not seem as if these are cleared. 

Version-Release number of selected component (if applicable): 2.2

How reproducible: Intermittent

Steps to Reproduce: Unknown

Actual results:

see follow-up comment (as it contains sensitive information). 

   Summary: 
       # oo-admin-clear-pending-ops
       Failed to clear op for domain (DOMAIN) - #<ChangeMembersDomainOp _id: UUID, created_at: 2015-09-30 16:20:47 UTC, parent_op_id: nil, state: "init", queued_at: 0, completed_app_ids: nil, on_completion_method: nil, _type: "ChangeMembersDomainOp", members_added: nil, members_removed: [["UUID", "user"]], roles_changed: nil> 
       ...
      0 applications were cleaned up. 0 users were cleaned up. 1 domains were cleaned up. 0 teams were cleaned up.

Expected results:

The error thrown by (puts "Failed to clear op for domain (#{d.namespace}) - #{op.inspect} ") should not be seen (in the code below) as the operation should be deleted with ( dlist.each { |op| op.delete } or   dlist.each { |op| op.delete }) 

Additional info:

The workaround to this is to set the pending_ops for a domain to "[ ]" via mongo

$domain_count = 0
def clean_domain(d)
  $domain_count += 1
  d.reload
  dlist = d.pending_ops.select { |op| op._type.nil? }
  dlist.each { |op| op.delete }
  d.pending_ops.delete_if { |op| op.nil? }
  d.run_jobs rescue nil
  d.reload
  dlist = d.pending_ops.select { |op| op.completed? }
  dlist.each { |op| op.delete }
  d.pending_ops.each { |op|
    unless op.completed?
      puts "Failed to clear op for domain (#{d.namespace}) - #{op.inspect} "
      op.state = :queued if op.state == :init
    end
  }
  d.save!
end