Change Details

As per title. Depends on D1388 and D1385

Use `nSequence` field instead of changing the outpoint. This was done to generate a new `TxId` and never to have a valid outpoint to begin with, so it will do. Depends on D1388 and D1385

As per titleUse `nSequence` field instead of changing the outpoint. This was done to generate a new `TxId` and never to have a valid outpoint to begin with, so it will do. Depends on D1388 and D1385