after_comitt not firing?

console

1.9.3-p392 :001 > Zone.find(455).touch
   (12.3ms)  SELECT * FROM geometry_columns WHERE f_table_name='zones'
  Zone Load (32.6ms)  SELECT "zones".* FROM "zones" WHERE "zones"."id" = $1 LIMIT 1  [["id", 455]]
  SQL (0.9ms)  UPDATE "zones" SET "updated_at" = '2013-09-03 19:44:19.881546' WHERE "zones"."id" = 455
 => true 

//notice that the string "hey there, I'm cleared" is not printed

1.9.3-p392 :002 > Zone.cached_find 455
  Zone Load (0.4ms)  SELECT "zones".* FROM "zones" WHERE "zones"."id" = $1 LIMIT 1  [["id", 455]]
 => #<Zone id: 455, location_id: 15, default_state: nil, created_at: "2013-08-06 18:28:01", updated_at: "2013-09-03 19:44:19", name: "Tyler's Office", rotation: #<BigDecimal:7fca2ebb1340,'0.9E2',9(18)>, collada: "wilcox_building", cpx: #<BigDecimal:7fca2ebb0aa8,'0.0',9(18)>, cpy: #<BigDecimal:7fca2ebb07b0,'0.0',9(18)>, cpz: #<BigDecimal:7fca2ebb06e8,'0.0',9(18)>, group_id: 6> 
1.9.3-p392 :003 > Zone.find(455).touch
  Zone Load (0.4ms)  SELECT "zones".* FROM "zones" WHERE "zones"."id" = $1 LIMIT 1  [["id", 455]]
  SQL (0.7ms)  UPDATE "zones" SET "updated_at" = '2013-09-03 19:45:11.039368' WHERE "zones"."id" = 455
 => true 
1.9.3-p392 :004 > Zone.cached_find 455
 => #<Zone id: 455, location_id: 15, default_state: nil, created_at: "2013-08-06 18:28:01", updated_at: "2013-09-03 19:44:19", name: "Tyler's Office", rotation: #<BigDecimal:7fca2e826b30,'0.9E2',9(18)>, collada: "wilcox_building", cpx: #<BigDecimal:7fca2e8269f0,'0.0',9(18)>, cpy: #<BigDecimal:7fca2e826900,'0.0',9(18)>, cpz: #<BigDecimal:7fca2e826810,'0.0',9(18)>, group_id: 6>

//notice that the cached_find is not using the correct zone (updated_at is the original updated_at instead of the one based off of the touch)

zone.rb

class Zone < ActiveRecord::Base
  after_commit :flush_cache
  
  def self.cached_find(id)
    Rails.cache.fetch([name, id]) { find(id) }
  end
  
  private
      def flush_cache
        puts "hey there, I'm cleared"
        Rails.cache.delete([self.class.name, id])
      end
  end
end