message: fix(gui): Allow undefined eta
  Change-type: patch
diff: @@ -251,19 +251,17 @@ const storeReducer = (state = DEFAULT_STATE, action) => {
  })
  }
  - if (!_.isUndefined(action.data.percentage)) {
  - if (!utils.isValidPercentage(action.data.percentage)) {
  + if (!_.isUndefined(action.data.percentage) && !utils.isValidPercentage(action.data.percentage)) {
  throw errors.createError({
  title: `Invalid state percentage: ${action.data.percentage}`
  })
  }
  - if (!_.isNumber(action.data.eta)) {
  + if (!_.isUndefined(action.data.eta) && !_.isNumber(action.data.eta)) {
  throw errors.createError({
  title: `Invalid state eta: ${action.data.eta}`
  })
  }
  - }
  return state.set('flashState', Immutable.fromJS(action.data))
  }
  