fix: 保存发货商品信息

backend/modules/shop/logic/delivery/DeliveryManager.php

@@ -69,7 +69,7 @@ class DeliveryManager
     {
         $status = Order::STATUS_SHIPMENT_ALL;
         foreach ($deliveryGoods as $id => $goodsCount) {
-            if ($goodsCount <= 0) {
+            if ($goodsCount < 0) {
                 throw new Exception('操作异常，发货数量不能小于0');
             } elseif ($goodsCount == 0) {
                 continue;