From e7937dc1c24057df484b51a5eeb1e15c68003fa4 Mon Sep 17 00:00:00 2001
From: Jas Kuner <jasraj.kuner@neotechnology.com>
Date: Tue, 7 Jan 2020 15:40:14 +0000
Subject: [PATCH] remove duplicates from the expandedNodeMap array from the
 outset. needs further testing (#1031)

---
 .../D3Visualization/lib/visualization/components/graph.js       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/browser/modules/D3Visualization/lib/visualization/components/graph.js b/src/browser/modules/D3Visualization/lib/visualization/components/graph.js
index fcf1caba4b1..34116a8ddee 100644
--- a/src/browser/modules/D3Visualization/lib/visualization/components/graph.js
+++ b/src/browser/modules/D3Visualization/lib/visualization/components/graph.js
@@ -82,7 +82,7 @@ export default class Graph {
         this.nodeMap[eNode.id] = eNode
         this._nodes.push(eNode)
         this.expandedNodeMap[node.id] = this.expandedNodeMap[node.id]
-          ? this.expandedNodeMap[node.id].concat([eNode.id])
+          ? [...new Set(this.expandedNodeMap[node.id].concat([eNode.id]))]
           : [eNode.id]
       }
     }