From 4849c90cbdfcaaef8b13b10bc12b6549e4604228 Mon Sep 17 00:00:00 2001
From: moklick <info@moritzklack.com>
Date: Thu, 16 Nov 2023 13:23:55 +0100
Subject: [PATCH] refactor(system): getElementsToRemove returns unique edge
 items

---
 packages/system/src/utils/graph.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/system/src/utils/graph.ts b/packages/system/src/utils/graph.ts
index b01d4c56..43a80ef6 100644
--- a/packages/system/src/utils/graph.ts
+++ b/packages/system/src/utils/graph.ts
@@ -312,7 +312,13 @@ export function getElementsToRemove<NodeType extends NodeBase = NodeBase, EdgeTy
   const deletableEdges = edges.filter((e) => (typeof e.deletable === 'boolean' ? e.deletable : true));
   const initialHitEdges = deletableEdges.filter((e) => edgeIds.includes(e.id));
   const connectedEdges = getConnectedEdgesBase<NodeType, EdgeType>(matchingNodes, deletableEdges);
-  const matchingEdges = [...initialHitEdges, ...connectedEdges];
+  const matchingEdges = connectedEdges.reduce((res, edge) => {
+    if (!res.find((e) => e.id === edge.id)) {
+      res.push(edge);
+    }
+
+    return res;
+  }, initialHitEdges);
 
   return {
     matchingEdges,