perf: PayPal退款: 优先处理IPN

webht/third_party/paypal/controllers/index.php

@@ -1256,11 +1256,13 @@ class Index extends CI_Controller {
         if ( ! empty($notes) ) { // && strpos($notes[0]->pn_custom, 'GPA_') === false
             $memo0 = json_decode($notes[0]->pn_memo);
             if ( ! (isset($memo0->id) && substr($memo0->id, 0, 2)==="WH")) {
-                $IPN_note = $notes[0]; // 存在IPN, 本条忽略
+                $IPN_note = $notes[0]; // 存在IPN, 本条WH忽略
+                if ((isset($payment_memo->id) && substr($payment_memo->id, 0, 2)==="WH")) {
                     $this->Note_model->update_send($item->pn_txn_id, 'send-', $item->pn_sn);
                     return false;
                 }
             }
+        }
         // 找到原始收款交易的订单
         $parent_txn_id = $payment_memo->parent_txn_id;
         $parent_note = $this->Note_model->note($parent_txn_id);