db: fixed: feeding incorrect sequence number to getSnapshot
db: fixed: feeding incorrect sequence number to getSnapshot

ngaut/goleveldb,no2key/goleveldb,zzl0/goleveldb,chai2010/goleveldb,FactomProject/goleveldb,conseweb/goleveldb,hustbill/goleveldb,rentongzhang/goleveldb,trigrass2/goleveldb,syndtr/goleveldb,btcsuite/goleveldb