From d986f0237c934cd4b35802c941f76f86a735ddd0 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 7 Apr 2023 16:11:19 +0300
Subject: [PATCH] Return error if no chat types are allowed.

---
 td/telegram/ReplyMarkup.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/td/telegram/ReplyMarkup.cpp b/td/telegram/ReplyMarkup.cpp
index de220d0a5..c5d186e0c 100644
--- a/td/telegram/ReplyMarkup.cpp
+++ b/td/telegram/ReplyMarkup.cpp
@@ -618,6 +618,9 @@ static Result<InlineKeyboardButton> get_inline_keyboard_button(tl_object_ptr<td_
           if (target->allow_channel_chats_) {
             current_button.id |= InlineKeyboardButton::BROADCASTS_MASK;
           }
+          if (current_button.id == 0) {
+            return Status::Error(400, "At least one chat type must be allowed");
+          }
           if (current_button.id == InlineKeyboardButton::FULL_MASK) {
             current_button.id = 0;
           }