From 172c357dc70420a2ce2fbe88a18ee439b945c3be Mon Sep 17 00:00:00 2001
From: Brian Wellington <bwelling@xbill.org>
Date: Tue, 7 Jul 2020 13:42:48 -0700
Subject: [PATCH] Fix Message ednsflags propery setter.

Setting ednsflags to 0 shouldn't unconditionally enable EDNS.
---
 dns/message.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dns/message.py b/dns/message.py
index 1bb02ae2..60b74c19 100644
--- a/dns/message.py
+++ b/dns/message.py
@@ -614,7 +614,7 @@ class Message:
     def ednsflags(self, v):
         if self.opt:
             self.opt.ttl = v
-        else:
+        elif v:
             self.opt = self._make_opt(v)
 
     @property
-- 
2.47.3