From 299f9248f078d10d53866432e422cb3d32bd3ea0 Mon Sep 17 00:00:00 2001
From: Sipke Schoorstra <sipkeschoorstra@outlook.com>
Date: Fri, 30 Jun 2023 11:23:12 +0200
Subject: [PATCH] Update flowchart JSON converter to handle undefined
 connections array

---
 .../Flowchart/Serialization/FlowchartJsonConverter.cs          | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/modules/Elsa.Workflows.Core/Activities/Flowchart/Serialization/FlowchartJsonConverter.cs b/src/modules/Elsa.Workflows.Core/Activities/Flowchart/Serialization/FlowchartJsonConverter.cs
index 0105f2b93..23883865d 100644
--- a/src/modules/Elsa.Workflows.Core/Activities/Flowchart/Serialization/FlowchartJsonConverter.cs
+++ b/src/modules/Elsa.Workflows.Core/Activities/Flowchart/Serialization/FlowchartJsonConverter.cs
@@ -138,6 +138,9 @@ public class FlowchartJsonConverter : JsonConverter<Activities.Flowchart>
 
     private static ICollection<Connection> DeserializeConnections(JsonElement connectionsElement, IDictionary<string, IActivity> activityDictionary, JsonSerializerOptions options)
     {
+        if(connectionsElement.ValueKind == JsonValueKind.Undefined)
+            return new List<Connection>();
+        
         // To not break existing workflow definitions, we need to support the old connection format.
         var useOldConnectionConverter = connectionsElement.EnumerateArray().Any(x => x.TryGetProperty("sourcePort", out var sourcePort) && sourcePort.ValueKind == JsonValueKind.String);