From 6f1ee382b5e4ec17a9b5cff0478f207f97bf0238 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Fri, 3 Nov 2023 19:07:16 +0100
Subject: [PATCH] Fix regression from 087cfd7a8c5f81c60589be36646cb59802f00fbb
 on hashset item duplicate re-add

---
 Source/Engine/Core/Collections/HashSet.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Source/Engine/Core/Collections/HashSet.h b/Source/Engine/Core/Collections/HashSet.h
index 166ca5cc3..d3fcf461d 100644
--- a/Source/Engine/Core/Collections/HashSet.h
+++ b/Source/Engine/Core/Collections/HashSet.h
@@ -702,8 +702,9 @@ private:
         FindPositionResult pos;
         FindPosition(key, pos);
 
-        // Ensure key is unknown
-        ASSERT(pos.ObjectIndex == -1 && "That key has been already added to the dictionary.");
+        // Check if object has been already added
+        if (pos.ObjectIndex != -1)
+            return nullptr;
 
         // Insert
         ASSERT(pos.FreeSlotIndex != -1);