fix(saleForm): 添加选择订单字段的必填验证规则

src/views/saleManage/saleOrder/accountstatement/components/saleForm.vue

@@ -279,7 +279,8 @@
             required: true,
             message: '请选择',
             trigger: 'change'
-          }
+          },
+          sourceId: { required: true, message: '请选择', trigger: 'change' },
         }
       };
     },