From 3b00ed43e3d8cb69ad4a2590546cfd1aa628266c Mon Sep 17 00:00:00 2001
From: Otto Moerbeek <otto.moerbeek@open-xchange.com>
Date: Mon, 28 Oct 2019 16:35:43 +0100
Subject: [PATCH] Do not wipe . NS; this can happen with custom hint files that
 are used by regression tests.

---
 pdns/reczones.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pdns/reczones.cc b/pdns/reczones.cc
index 6a04268b66..4fd2c32f44 100644
--- a/pdns/reczones.cc
+++ b/pdns/reczones.cc
@@ -119,7 +119,9 @@ void primeRootNSZones(bool dnssecmode)
     sr.setDNSSECValidationRequested(true);
   }
   for (const auto & qname: t_rootNSZones) {
-    t_RC->doWipeCache(qname, false, QType::NS);
+    if (!qname.isRoot()) {
+      t_RC->doWipeCache(qname, false, QType::NS);
+    }
     vector<DNSRecord> ret;
     sr.beginResolve(qname, QType(QType::NS), QClass::IN, ret);
   }
-- 
2.47.2