message: Add debug info for CWallet::ReconsiderZerocoins().
diff: @@ -4837,17 +4837,24 @@ void CWallet::ReconsiderZerocoins(std::list<CZerocoinMint>& listMintsRestored)
  return;
  for (CZerocoinMint mint : listMints) {
  - if (IsSerialKnown(mint.GetSerialNumber()))
  + if (IsSerialKnown(mint.GetSerialNumber())) {
  + LogPrintf("%s: serial %s is already in the blockchain\n", __func__, mint.GetSerialNumber().GetHex());
  continue;
  + }
  +
  uint256 txHash;
  - if (!GetZerocoinMint(mint.GetValue(), txHash))
  + if (!GetZerocoinMint(mint.GetValue(), txHash)) {
  + LogPrintf("%s: did not find pubcoin %s in database\n", __func__, mint.GetValue().GetHex());
  continue;
  + }
  uint256 hashBlock = 0;
  CTransaction tx;
  - if (!GetTransaction(txHash, tx, hashBlock))
  + if (!GetTransaction(txHash, tx, hashBlock)) {
  + LogPrintf("%s: failed to find transaction %s in blockchain\n", __func__, txHash.GetHex());
  continue;
  + }
  mint.SetTxHash(txHash);
  mint.SetHeight(mapBlockIndex.at(hashBlock)->nHeight);
  