From ecfaecd7f98af4da06f6a1641c10836afebe5f48 Mon Sep 17 00:00:00 2001
From: Green Sky <green@g-s.xyz>
Date: Mon, 22 Apr 2024 22:27:49 +0200
Subject: [PATCH] fix sync on sender less messages (rare crash)

---
 src/solanaceae/zox/ngc_hs.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/solanaceae/zox/ngc_hs.cpp b/src/solanaceae/zox/ngc_hs.cpp
index 53d4dcb..96ab4b1 100644
--- a/src/solanaceae/zox/ngc_hs.cpp
+++ b/src/solanaceae/zox/ngc_hs.cpp
@@ -99,6 +99,10 @@ float ZoxNGCHistorySync::tick(float delta) {
 				continue;
 			}
 
+			if (!reg.all_of<Message::Components::ContactFrom>(msg_e)) {
+				std::cerr << "ZOX NGCHS error: msg without sender\n";
+				continue;
+			}
 			const auto& msg_sender = reg.get<Message::Components::ContactFrom>(msg_e).c;
 
 			if (!_cr.all_of<Contact::Components::ToxGroupPeerPersistent>(msg_sender)) {