set correct IV when NTCP2 address gets published

libi2pd/RouterContext.cpp

@@ -164,6 +164,7 @@ namespace i2p
 
 	void RouterContext::PublishNTCP2Address (int port, bool publish)
 	{
+		if (!m_NTCP2Keys) return;
 		if (!port)
 			port = rand () % (30777 - 9111) + 9111; // I2P network ports range
 		bool updated = false;
@@ -173,6 +174,7 @@ namespace i2p
 			{
 				address->port = port;
 				address->ntcp2->isPublished = publish;
+				address->ntcp2->iv = m_NTCP2Keys->iv;
 				updated = true;
 			}
 		}