# File lib/audited/auditor.rb, line 167
      def combine_audits(audits_to_combine)
        combine_target = audits_to_combine.last
        combine_target.audited_changes = audits_to_combine.pluck(:audited_changes).reduce(&:merge)
        combine_target.comment = "#{combine_target.comment}\nThis audit is the result of multiple audits being combined."

        transaction do
          combine_target.save!
          audits_to_combine.unscope(:limit).where("version < ?", combine_target.version).delete_all
        end
      end