From f079f3d66bd6d3dd2eaeb2b14168f049ebaa5d00 Mon Sep 17 00:00:00 2001
From: Shannon <sdeminick@gmail.com>
Date: Mon, 18 Feb 2019 16:29:57 +1100
Subject: [PATCH] Fixes a null ref if a url provider returns null

---
 src/Umbraco.Web/Routing/UrlProvider.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web/Routing/UrlProvider.cs b/src/Umbraco.Web/Routing/UrlProvider.cs
index da64d46046..0662d46f49 100644
--- a/src/Umbraco.Web/Routing/UrlProvider.cs
+++ b/src/Umbraco.Web/Routing/UrlProvider.cs
@@ -246,7 +246,7 @@ namespace Umbraco.Web.Routing
         /// </remarks>
         public IEnumerable<UrlInfo> GetOtherUrls(int id, Uri current)
         {
-            return _urlProviders.SelectMany(provider => provider.GetOtherUrls(_umbracoContext, id, current));
+            return _urlProviders.SelectMany(provider => provider.GetOtherUrls(_umbracoContext, id, current) ?? Enumerable.Empty<UrlInfo>());
         }
 
         #endregion