txid parsing fixes for txdb.
txid parsing fixes for txdb.

decentraland/bronzeage-node,decentraland/bronzeage-node,decentraland/decentraland-node,decentraland/decentraland-node,VidaID/bcoin,decentraland/decentraland-node,VidaID/bcoin,VidaID/bcoin,decentraland/bronzeage-node