当未指定重泡货优惠时关闭指定线路，同是将指定线路的值置空。

https://zentao.test.jdshangmen.com/bug-view-2988.html

src/views/ecw/customer/edit.vue

@@ -681,6 +681,15 @@ export default {
             return
           }
 
+            // 重货标准和泡货标准，未打开就不传，提交前清空一下
+            if(!this.showZhong) {
+              this.form.weightUnit = null
+              this.form.zhongLines = null
+            }
+            if(!this.showPao) {
+              this.form.lightUnit = null
+              this.form.paoLines = null
+            }
           const form = {...this.form, type: this.form.type?.join(','), transportType: (this.form.transportType || [])?.join(','), taxRate: Number(this.form.taxRate)}
 
           // 检查路线是否启用了但是没选择目的仓