prevent error when undefined value

src/components/Feature/Detail/FeatureTable.vue

@@ -41,7 +41,7 @@
                 ]"
                 aria-hidden="true"
               />
-              <span v-else-if="field.field_type === 'multi_choices_list'">
+              <span v-else-if="field.value && field.field_type === 'multi_choices_list'">
                 {{ field.value.join(', ') }}
               </span>
               <span v-else>