From 70670d7217fec8bc73f79de95dd1d7159c225600 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Wed, 6 Sep 2023 17:06:21 +0300
Subject: [PATCH] Explicitly disallow message updates with
 "channel_chat_created" content.

---
 telegram-bot-api/Client.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/telegram-bot-api/Client.cpp b/telegram-bot-api/Client.cpp
index 67bcf1d..cea1026 100644
--- a/telegram-bot-api/Client.cpp
+++ b/telegram-bot-api/Client.cpp
@@ -11092,6 +11092,11 @@ bool Client::need_skip_update_message(int64 chat_id, const object_ptr<td_api::me
       // don't send messages received before join or getting authorization
       return true;
     }
+
+    if (!supergroup_info->is_supergroup && message->content_->get_id() == td_api::messageSupergroupChatCreate::ID) {
+      // don't send message about channel creation, even the bot was added at exactly the same time
+      return true;
+    }
   }
 
   if (message->self_destruct_time_ > 0) {