运输管理-BUG修复

app/Http/Controllers/WaybillsController.php

@@ -210,7 +210,7 @@ class WaybillsController extends Controller
 
         $data=$request->input();
         if (!isset($data['destination']))$data['destination']=$waybill->destination;
-        if ($data['destination_city_id'] && $waybill->destination_city_id != $data['destination_city_id']){
+        if (isset($data['destination_city_id']) && $waybill->destination_city_id != $data['destination_city_id']){
             $city=City::find($data['destination_city_id']);
             if ($city && (mb_strpos($data['destination'],$city->name)===false || mb_strpos($data['destination'],$city->province_name)===false)){
                 if (mb_strpos($data['destination'],$city->name)===false && mb_strpos($data['destination'],$city->province_name)===false){