restore_transaction_record_state

# File activerecord/lib/active_record/transactions.rb, line 434
      def restore_transaction_record_state(force = false)
        unless @_start_transaction_state.empty?
          transaction_level = (@_start_transaction_state[:level] || 0) - 1
          if transaction_level < 1 || force
            restore_state = @_start_transaction_state
            thaw
            @new_record = restore_state[:new_record]
            @destroyed  = restore_state[:destroyed]
            pk = self.class.primary_key
            if pk && _read_attribute(pk) != restore_state[:id]
              _write_attribute(pk, restore_state[:id])
            end
            freeze if restore_state[:frozen?]
          end
        end
      end