From c207a7c0d3fad14143f73bcb32fb7b343fe0c6ad Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 21 Feb 2020 19:05:57 +0400
Subject: [PATCH] Fix simultaneous read history requests.

---
 Telegram/SourceFiles/data/data_histories.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/data/data_histories.cpp b/Telegram/SourceFiles/data/data_histories.cpp
index c35c241057..bcd3cdfe9d 100644
--- a/Telegram/SourceFiles/data/data_histories.cpp
+++ b/Telegram/SourceFiles/data/data_histories.cpp
@@ -388,7 +388,7 @@ void Histories::sendReadRequests() {
 	const auto now = crl::now();
 	auto next = std::optional<crl::time>();
 	for (auto &[history, state] : _states) {
-		if (!state.readTill) {
+		if (!state.readTill || state.readWhen == kReadRequestSent) {
 			continue;
 		} else if (state.readWhen <= now) {
 			sendReadRequest(history, state);