message: Interaction: don't set out of date prevEvent
diff: @@ -390,8 +390,11 @@ class Interaction {
  _fireEvent (iEvent) {
  this.target.fire(iEvent);
  +
  + if (!this.prevEvent || iEvent.timeStamp >= this.prevEvent.timeStamp) {
  this.prevEvent = iEvent;
  }
  + }
  _doPhase (signalArg) {
  const { event, phase, preEnd, type } = signalArg;
  