message: fix - cleaned fields after extents
diff: @@ -10,11 +10,6 @@ class AtomicAB2UTXO extends Flow {
  constructor(swap) {
  super(swap)
  - this.swap = swap
  - this.steps = []
  - this.app = null
  -
  - this.stepNumbers = {}
  this.state = {
  ...this.state,
  