From bd490421e8b5226fc127f89b31cf153e4cece2da Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 23 Dec 2022 14:32:46 +0400
Subject: [PATCH] No "Who Viewed" in case of hidden members.

---
 Telegram/SourceFiles/api/api_who_reacted.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/api/api_who_reacted.cpp b/Telegram/SourceFiles/api/api_who_reacted.cpp
index 7ebabbb72..82b178b87 100644
--- a/Telegram/SourceFiles/api/api_who_reacted.cpp
+++ b/Telegram/SourceFiles/api/api_who_reacted.cpp
@@ -571,7 +571,10 @@ bool WhoReadExists(not_null<HistoryItem*> item) {
 	const auto peer = history->peer;
 	const auto chat = peer->asChat();
 	const auto megagroup = peer->asMegagroup();
-	if ((!chat && !megagroup) || peer->isForum()) {
+	if ((!chat && !megagroup)
+		|| peer->isForum()
+		|| (megagroup
+			&& (megagroup->flags() & ChannelDataFlag::ParticipantsHidden))) {
 		return false;
 	}
 	const auto &appConfig = peer->session().account().appConfig();