Heroku / Sidekiq没有找到数据库记录after_commit

Question

这是我的代码：

after_commit :notify, on: :create

notify方法，调用ServiceRequestMailerWorker.perform_async(self.id, email)，这是我的邮件看起来像：

class ServiceRequestMailerWorker
  include Sidekiq::Worker

  def perform(service_request_id, send_to)
    @service_request = ServiceRequest.find(service_request_id)
    @customer = @service_request.customer
    WarrantyMailer.submitted(@service_request, @customer, send_to).deliver
  end
end

错误：

2014-07-22T03:05:25.626004+00:00 app[worker.1]: 2014-07-22T03:05:25.625Z 2 TID-os0kqm6sg DEBUG: enqueued retry: {"retry":true,"queue":"default","class":"ServiceRequestMailerWorker","args":[787,"email@email.com"],"jid":"f1d8f416718bafa8c809fa3e","enqueued_at":1405998308.4219391,"error_message":"Couldn't find ServiceRequest with 'id'=787 [WHERE (company_id IS NOT NULL)]","error_class":"ActiveRecord::RecordNotFound","failed_at":1405998308.618538,"retry_count":0}

这只发生在Heroku的临时环境中。我一直试图调试这几个小时。其他人遇到这个问题？