Ignore authentication_token for bots.

Author: AYMENJD

td/telegram/AuthManager.cpp

@@ -1269,7 +1269,7 @@ void AuthManager::on_log_out_result(NetQueryPtr &&net_query) {
   auto r_log_out = fetch_result<telegram_api::auth_logOut>(std::move(net_query));
   if (r_log_out.is_ok()) {
     auto logged_out = r_log_out.move_as_ok();
-    if (!logged_out->future_auth_token_.empty()) {
+    if (!logged_out->future_auth_token_.empty() && !is_bot()) {
       td_->option_manager_->set_option_string("authentication_token",
                                               base64url_encode(logged_out->future_auth_token_.as_slice()));
     }
@@ -1387,7 +1387,7 @@ void AuthManager::on_get_authorization(tl_object_ptr<telegram_api::auth_Authoriz
   if (auth->setup_password_required_ && auth->otherwise_relogin_days_ > 0) {
     td_->option_manager_->set_option_integer("otherwise_relogin_days", auth->otherwise_relogin_days_);
   }
-  if (!auth->future_auth_token_.empty()) {
+  if (!auth->future_auth_token_.empty() && !is_bot()) {
     td_->option_manager_->set_option_string("authentication_token",
                                             base64url_encode(auth->future_auth_token_.as_slice()));
   }