add

app/models/store/StoreOrder.php

@@ -846,6 +846,7 @@ class StoreOrder extends BaseModel
         $spread_uid = User::get($user['spread_uid']);
         while ($spread_uid) {
             $res = $res && Achievement::create(['uid' => $spread_uid['uid'], 'from_uid' => $user['uid'], 'add_time' => time(), 'achievement' => $sum_sp]);
+            $spread_uid = User::get($spread_uid['spread_uid']);
         }
         return $res;
     }