# File lib/plucky/normalizers/sort_value.rb, line 18
      def call(value)
        case value
          when Array
            if value.size == 1 && value[0].is_a?(String)
              normalized_sort_piece(value[0])
            else
              value.compact.map { |v| normalized_sort_piece(v).flatten }
            end
          else
            normalized_sort_piece(value)
        end
      end