normalize manifest array fields

1 files changed, 10 insertions, 0 deletions

diff --git a/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs b/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs
index 99e85cbd..46b654a5 100644
--- a/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs
+++ b/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Runtime.Serialization;
 using Newtonsoft.Json;
 using StardewModdingAPI.Toolkit.Serialization.Converters;
 
@@ -70,5 +71,14 @@ namespace StardewModdingAPI.Toolkit.Serialization.Models
             this.UpdateKeys = new string[0];
             this.ContentPackFor = new ManifestContentPackFor { UniqueID = contentPackFor };
         }
+
+        /// <summary>Normalize the model after it's deserialized.</summary>
+        /// <param name="context">The deserialization context.</param>
+        [OnDeserialized]
+        public void OnDeserialized(StreamingContext context)
+        {
+            this.Dependencies ??= new IManifestDependency[0];
+            this.UpdateKeys ??= new string[0];
+        }
     }
 }