From a31af8ecab04a02a634e15e0905026591b03c6a6 Mon Sep 17 00:00:00 2001
From: peterkogo <peter@xyflow.com>
Date: Tue, 30 Sep 2025 18:04:04 +0200
Subject: [PATCH] do not mutate node object when selecting

---
 packages/svelte/src/lib/store/index.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/packages/svelte/src/lib/store/index.ts b/packages/svelte/src/lib/store/index.ts
index fcc71d3e..3da3b7a2 100644
--- a/packages/svelte/src/lib/store/index.ts
+++ b/packages/svelte/src/lib/store/index.ts
@@ -241,8 +241,7 @@ export function createStore<NodeType extends Node = Node, EdgeType extends Edge
         // we need to mutate the node here in order to have the correct selected state in the drag handler
         const internalNode = store.nodeLookup.get(node.id);
         if (internalNode) internalNode.selected = selected;
-        node.selected = selected;
-        return { ...node };
+        return { ...node, selected };
       }
       return node;
     });