From f4754f210c42244a71ef182a09bb9bbc37350bd6 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 18 Jul 2019 11:03:54 +0200
Subject: [PATCH] Update full channel on updateChannel.

---
 Telegram/SourceFiles/mainwidget.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 33a2a12ca..0ded1e98c 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -4437,6 +4437,11 @@ void MainWidget::feedUpdate(const MTPUpdate &update) {
 		if (const auto channel = session().data().channelLoaded(d.vchannel_id().v)) {
 			channel->inviter = UserId(0);
 			if (channel->amIn()) {
+				if (channel->isMegagroup()
+					&& !channel->amCreator()
+					&& !channel->hasAdminRights()) {
+					channel->updateFullForced();
+				}
 				const auto history = channel->owner().history(channel);
 				//if (const auto feed = channel->feed()) { // #feed
 				//	feed->requestChatListMessage();