always show user choice even if no more in enum in columns

app/models/columns/champ_column.rb

@@ -70,7 +70,7 @@ class Columns::ChampColumn < Column
     when :date
       parse_datetime(value)&.to_date
     when :enum
-      parse_enum(value)
+      value
     when :enums
       parse_enums(value)
     else
@@ -91,9 +91,9 @@ class Columns::ChampColumn < Column
     when ['integer_number', 'text'], ['decimal_number', 'text'] # number to text
       value
     when ['drop_down_list', 'multiple_drop_down_list'] # single list can become multi
-      [parse_enum(value)].compact_blank
+      [value]
     when ['drop_down_list', 'text'] # single list can become text
-      parse_enum(value)
+      value
     when ['multiple_drop_down_list', 'drop_down_list'] # multi list can become single
       parse_enums(value)&.first
     when ['multiple_drop_down_list', 'text'] # multi list can become text
@@ -116,11 +116,6 @@ class Columns::ChampColumn < Column
     end
   end
 
-  def parse_enum(value)
-    return value if options_for_select.blank?
-    value if options_for_select.to_set(&:second).member?(value)
-  end
-
   def parse_enums(value)
     values = JSON.parse(value)
     return values if options_for_select.blank?

spec/models/columns/champ_column_spec.rb

@@ -121,14 +121,6 @@ describe Columns::ChampColumn do
           expect(column('multiple_drop_down_list').value(champ)).to eq(['val1'])
           expect(column('text').value(champ)).to eq('val1')
         end
-
-        context 'value not in options' do
-          let(:value) { 'toto' }
-
-          it do
-            expect(column('simple_drop_down_list').value(champ)).to eq(nil)
-          end
-        end
       end
 
       context 'from a multiple_drop_down_list' do