From be9ff3ea75ca5d76563ac0f781bcae7ab4732af8 Mon Sep 17 00:00:00 2001
From: Shreyas Zare <shreyas@technitium.com>
Date: Sat, 10 Apr 2021 13:44:54 +0530
Subject: [PATCH] AuthZoneManager: minor code refactoring.

---
 DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs b/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
index ca81c919..71286803 100644
--- a/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
+++ b/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
@@ -688,10 +688,10 @@ namespace DnsServerCore.Dns.ZoneManagers
             if (!dontRemoveRecords)
             {
                 //remove domains that do not exists in new records
-                foreach (string oldDomain in oldRecordsGroupedByDomain.Keys)
+                foreach (KeyValuePair<string, Dictionary<DnsResourceRecordType, List<DnsResourceRecord>>> oldDomain in oldRecordsGroupedByDomain)
                 {
-                    if (!newRecordsGroupedByDomain.ContainsKey(oldDomain))
-                        _root.TryRemove(oldDomain, out _);
+                    if (!newRecordsGroupedByDomain.ContainsKey(oldDomain.Key))
+                        _root.TryRemove(oldDomain.Key, out _);
                 }
             }