message: Changed now checking against the segmentedcontrol property
  Setting NSNotFound will get set as -1
diff: self.selectedSegmentIndex = [tabBar.reactSubviews indexOfObjectPassingTest:^BOOL(UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
  return [(NVTabBarItemView *) obj selected];
  }];
  - if (self.selectedSegmentIndex == NSNotFound)
  + if (self.selectedSegmentIndex == -1)
  self.selectedSegmentIndex = 0;
  tabChanged = _selectedTab != self.selectedSegmentIndex;
  }
  