From 2870ce5e0a75ca3b0bb7479bfcc945cb7271fa47 Mon Sep 17 00:00:00 2001
From: Shannon <sdeminick@gmail.com>
Date: Fri, 21 Jun 2019 15:48:10 +1000
Subject: [PATCH] a perf change that in ContentCacheRefresher it doesn't
 iterate payloads if there is no real Id

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

diff --git a/src/Umbraco.Web/Cache/ContentCacheRefresher.cs b/src/Umbraco.Web/Cache/ContentCacheRefresher.cs
index e4d2c2e4da..21b97d980d 100644
--- a/src/Umbraco.Web/Cache/ContentCacheRefresher.cs
+++ b/src/Umbraco.Web/Cache/ContentCacheRefresher.cs
@@ -49,7 +49,7 @@ namespace Umbraco.Web.Cache
             var idsRemoved = new HashSet<int>();
             var isolatedCache = AppCaches.IsolatedCaches.GetOrCreate<IContent>();
 
-            foreach (var payload in payloads)
+            foreach (var payload in payloads.Where(x => x.Id != default))
             {
                 isolatedCache.Clear(RepositoryCacheKeys.GetKey<IContent>(payload.Id));