Don't crash when using a private chain.

libethereum/CanonBlockChain.cpp

@@ -38,8 +38,6 @@ using namespace dev;
 using namespace dev::eth;
 namespace js = json_spirit;
 
-#define ETH_CATCH 1
-
 std::unique_ptr<Ethash::BlockHeader> CanonBlockChain<Ethash>::s_genesis;
 boost::shared_mutex CanonBlockChain<Ethash>::x_genesis;
 Nonce CanonBlockChain<Ethash>::s_nonce(u64(42));

libethereum/Client.cpp

@@ -352,7 +352,7 @@ void Client::killChain()
 		bc().reopen(Defaults::dbPath(), WithExisting::Kill);
 
 		m_preMine = bc().genesisState(m_stateDB);
-		m_postMine = State(m_stateDB);
+		m_postMine = m_preMine;
 	}
 
 	if (auto h = m_host.lock())