       return SPAN null
 
     @local.current_value ||= subdomain.customizations
+    @local.customization_filter ||= ''
 
     DIV 
       style: 

                @local.compare_to = ev.target.value 
                save @local

              for sub, id of sub_ids 
                OPTION 
                  value: sub
                  sub 

            width:  if @local.compare_to == '' then '22%' else '38%'
            verticalAlign: 'top'
            marginLeft: '2%'

          INPUT 
            style: 
              width: '100%'
            placeholder: 'Filter to subs with customization containing...'
            ref: 'customization_filter'
            type: 'text'
            defaultValue: ''
            onKeyUp: (e) => 
              @local.customization_filter = @refs.customization_filter.getDOMNode().value
              save @local

          DIV 
            style: 
