From 6eebd9660530076a27a0f442edd6c35cad964499 Mon Sep 17 00:00:00 2001
From: Reiter <michael.reiter@cyber-solutions.at>
Date: Tue, 29 Mar 2022 18:29:50 +0200
Subject: [PATCH] add null check to multiurlpickervalueconverter IsValue()
 function umbraco#12186

---
 .../ValueConverters/MultiUrlPickerValueConverter.cs             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/MultiUrlPickerValueConverter.cs b/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/MultiUrlPickerValueConverter.cs
index 281f6c58eb..8b9093c1ca 100644
--- a/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/MultiUrlPickerValueConverter.cs
+++ b/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/MultiUrlPickerValueConverter.cs
@@ -41,7 +41,7 @@ namespace Umbraco.Cms.Core.PropertyEditors.ValueConverters
 
         public override PropertyCacheLevel GetPropertyCacheLevel(IPublishedPropertyType propertyType) => PropertyCacheLevel.Snapshot;
 
-        public override bool? IsValue(object value, PropertyValueLevel level) => value?.ToString() != "[]";
+        public override bool? IsValue(object value, PropertyValueLevel level) => value != null && value.ToString() != "[]";
 
         public override object ConvertSourceToIntermediate(IPublishedElement owner, IPublishedPropertyType propertyType, object source, bool preview) => source?.ToString();