From ed8896119feddc38fcf1ee028ca0eaad46ab842c Mon Sep 17 00:00:00 2001
From: robomic <michal.ciasnocha@robotec.ai>
Date: Wed, 22 Jan 2025 10:57:35 +0100
Subject: [PATCH] avoid race condition by returning by value

---
 external/concealer/include/concealer/subscriber_wrapper.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/external/concealer/include/concealer/subscriber_wrapper.hpp b/external/concealer/include/concealer/subscriber_wrapper.hpp
index 8247a872e3a..25270a4b62f 100644
--- a/external/concealer/include/concealer/subscriber_wrapper.hpp
+++ b/external/concealer/include/concealer/subscriber_wrapper.hpp
@@ -35,7 +35,8 @@ class SubscriberWrapper
     if constexpr (thread_safety == ThreadSafety::unsafe) {
       return *current_value;
     } else {
-      return *std::atomic_load(&current_value);
+      const auto copy = *std::atomic_load(&current_value);
+      return copy;
     }
   }