From dd3cc765bafa01c3c8e70bfc2aeb1da125875682 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Sat, 27 Jul 2019 23:16:22 +0300
Subject: [PATCH] Ignore duplicate SetPollAnswer logevent.

GitOrigin-RevId: 93a75f66765c7e578ededa16b03d21385182db3d
---
 td/telegram/PollManager.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/td/telegram/PollManager.cpp b/td/telegram/PollManager.cpp
index 671d754a..c9354770 100644
--- a/td/telegram/PollManager.cpp
+++ b/td/telegram/PollManager.cpp
@@ -603,7 +603,11 @@ void PollManager::do_set_poll_answer(PollId poll_id, FullMessageId full_message_
     return;
   }
 
-  CHECK(pending_answer.logevent_id_ == 0 || logevent_id == 0);
+  if (pending_answer.logevent_id_ != 0 && logevent_id != 0) {
+    LOG(ERROR) << "Duplicate SetPollAnswer log event: " << pending_answer.logevent_id_ << " and " << logevent_id;
+    binlog_erase(G()->td_db()->get_binlog(), logevent_id);
+    return;
+  }
   if (logevent_id == 0 && G()->parameters().use_message_db) {
     SetPollAnswerLogEvent logevent;
     logevent.poll_id_ = poll_id;