fix: 修复placeholder不展示bug

src/views/logistics/components/CreateSortingRuleDialog.vue

@@ -214,7 +214,7 @@ const editId = ref<number>()
 const createConditionItem = (): SortingPortCondition => ({
   conditionType: '',
   operator: '',
-  conditionValue: undefined,
+  conditionValue: [],
 })
 
 const createDefaultForm = (): IsortingInfo => ({
@@ -238,7 +238,7 @@ const getAvailableConditionTypes = (currentIndex: number) => {
 }
 
 const handleConditionTypeChange = (item: SortingPortCondition) => {
-  item.conditionValue = undefined
+  item.conditionValue = []
   item.operator = 'in'
 }
 
@@ -280,7 +280,9 @@ const formatConditionsForForm = (conditions: SortingPortCondition[]) =>
     conditionValue:
       typeof item.conditionValue === 'string'
         ? item.conditionValue.split(',').filter(Boolean)
-        : item.conditionValue,
+        : Array.isArray(item.conditionValue)
+        ? item.conditionValue
+        : [],
   }))
 
 const addConditionItem = () => {
@@ -415,7 +417,6 @@ defineExpose({ open })
 
     :deep(.el-select__selection) {
       flex-wrap: nowrap;
-      overflow: hidden;
     }
 
     :deep(.el-select__selected-item) {