Trying to track down state machine memory leak on anonymous classes.

gistfile1.rb

require 'state_machine'

# Without state machine
regular_class = Class.new
regular_class_id = regular_class.object_id
regular_class = nil

# With state machine
machine_class = Class.new
machine_class.state_machine(:initial => :parked) do
  transition({:parked => :idling, :idling => :on, :on => :parked})
end
machine_class_id = machine_class.object_id
machine_class = nil

GC.start
GC.start # Must be called twice

begin
  p "Regular class still exists: #{ObjectSpace._id2ref(regular_class_id)}"
rescue
  p "Regular class garbage collected!"
end

begin
  p "State machine class still exists: #{ObjectSpace._id2ref(machine_class_id)}"
rescue
  p "State machine class garbage collected!"
end