return for unhandleable tx_extra

src/wallet/wallet2.cpp

@@ -41,7 +41,11 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
   
   // Temporarily disabled due to messed up tx_extra from someone
   // screwing around with MMing. 2014-04-30
+  
   // THROW_WALLET_EXCEPTION_IF(!r, error::tx_extra_parse_error, tx);
+  
+  // We don't know how to handle this weird tx, so return
+  if (!r) return;
 
   r = lookup_acc_outs(m_account.get_keys(), tx, tx_pub_key, outs, tx_money_got_in_outs);
   THROW_WALLET_EXCEPTION_IF(!r, error::acc_outs_lookup_error, tx, tx_pub_key, m_account.get_keys());