message: Fix for race condition
diff: @@ -1801,7 +1801,7 @@ bool CZnodeMan::IsZnodePingedWithin(const CTxIn& vin, int nSeconds, int64_t nTim
  void CZnodeMan::SetZnodeLastPing(const CTxIn& vin, const CZnodePing& mnp)
  {
  - LOCK(cs);
  + LOCK2(cs_main, cs);
  CZnode* pMN = Find(vin);
  if(!pMN) {
  return;
  