From 759383c52dfe91f60c61dbba83046411c753b2eb Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Mon, 8 Feb 2016 20:58:06 +0000
Subject: [PATCH] hardfork: add a default fork entry for v1 if none exist

To avoid special cases
---
 src/cryptonote_core/hardfork.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/cryptonote_core/hardfork.cpp b/src/cryptonote_core/hardfork.cpp
index 9fe731ad..e99736ff 100644
--- a/src/cryptonote_core/hardfork.cpp
+++ b/src/cryptonote_core/hardfork.cpp
@@ -155,6 +155,11 @@ bool HardFork::add(const cryptonote::block &block, uint64_t height)
 void HardFork::init()
 {
   CRITICAL_REGION_LOCAL(lock);
+
+  // add a placeholder for the default version, to avoid special cases
+  if (heights.empty())
+    heights.push_back(Params(original_version, 0, 0, 0));
+
   versions.clear();
   for (size_t n = 0; n < 256; ++n)
     last_versions[n] = 0;