Use an infinite sequence and save a query

app/models/agent.rb

@@ -296,7 +296,7 @@ class Agent < ActiveRecord::Base
       new(original.slice(:type, :options, :service_id, :schedule, :controller_ids, :control_target_ids,
                          :source_ids, :keep_events_for, :propagate_immediately, :scenario_ids)) { |clone|
         # Give it a unique name
-        2.upto(count) do |i|
+        2.step do |i|
           name = '%s (%d)' % [original.name, i]
           unless exists?(name: name)
             clone.name = name