From 028e5d75bf8eb7ac02c498a814858d7a18757322 Mon Sep 17 00:00:00 2001
From: wongpratan <wongpratan@hotmail.com>
Date: Tue, 8 Apr 2025 16:15:05 +0700
Subject: [PATCH] *Prevent duplicate -
 https://github.com/digi-serve/ns_app/issues/602

---
 .../properties/process/ABProcessGatewayExclusive.js       | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/rootPages/Designer/properties/process/ABProcessGatewayExclusive.js b/src/rootPages/Designer/properties/process/ABProcessGatewayExclusive.js
index a3640b41..f0f3d32e 100644
--- a/src/rootPages/Designer/properties/process/ABProcessGatewayExclusive.js
+++ b/src/rootPages/Designer/properties/process/ABProcessGatewayExclusive.js
@@ -72,8 +72,12 @@ export default function (AB) {
             })
             .filter((f) => f);
 
-         const myOutgoingConnections = element.process.connectionsOutgoing(
-            element.diagramID
+         const myOutgoingConnections = (
+            element.process?.connectionsOutgoing?.(element.diagramID) ?? []
+         ).filter(
+            // Prevent duplicates
+            (conn, pos, self) =>
+               self.findIndex((item) => item.id === conn.id) === pos
          );
 
          this.__dfLookup = {};