fix , 客服消息更新公众号

modules/WechatPlatform/Http/Controllers/KFMessageController.php

@@ -46,7 +46,7 @@ class KFMessageController extends CatchController
             ->paginate($request->input('limit', 20));
         $gzhIds = $gzhs = $ugs =  collect();
         $result->pluck('gzh_ids')->every(function ($item) use ($gzhIds){
-            $gzhIds->merge(explode('#', trim($item, '#')));
+            $gzhIds = $gzhIds->merge(explode('#', trim($item, '#')));
         });
 
         if($gzhIds->isNotEmpty()) {