Fix

app/Services/AfterSaleService.php

@@ -459,10 +459,13 @@ class AfterSaleService
                 'remarks' => $remarks,
             ]);
 
-            // 订单未结算
+            // 如果订单已结算则不处理
+            if ($order->is_settle) {
+                return;
+            }
+
             // 非赠品售后单，且售后单类型是换货、退款、退款退货
-            if (! $order->is_settle
+            if (! $afterSaleProduct->isGift()
-                && ! $afterSaleProduct->isGift()
                 && in_array($afterSale->type, [
                     AfterSale::TYPE_REFUND_AND_RETURN,
                     AfterSale::TYPE_REFUND,