anchor.diff:        # Handle columns with options detected from validates :inclusion
         else if selected.data('select-options') and Select2?
           @set_option_predicates(base_id, available, column_type)
  -        query_input.val('')
  +        query_input.val('').removeAttr('data-value-label')
           query_input.select2
             data: selected.data('select-options')
             placeholder: "Please select a #{selected.val()}"
  
positive.code:         # If Select2 is on query input, remove and set defaults
          if Select2? && @element.find("#s2id_#{base_id}v_0_value").length
            query_input.select2('destroy')
            query_input.val('')
  
          query_input.val("true")
          query_input.hide()
  
negative.code:           # If Select2 is on query input, remove and set defaults
            if (query_select2 = @element.find("#s2id_#{base_id}v_0_value")).length > 0
              query_input.select2('destroy')
              query_input.val('').removeAttr('data-value-label')
              previous_val = ''
            else
              previous_val = predicate_select.val()
  