message: Changed for consistency with toolbar and bar button
diff: @@ -117,9 +117,9 @@ public class TabBarItemView extends ViewGroup {
  void styleTitle() {
  if (titleChanged) {
  - styledTitle = null;
  + SpannableString titleSpannable = null;
  if (title != null) {
  - SpannableString titleSpannable = new SpannableString(title);
  + titleSpannable = new SpannableString(title);
  if (fontFamily != null)
  titleSpannable.setSpan(new TypefaceSpan(fontFamily), 0, title.length(), 0);
  if (fontWeight != null)
  @@ -128,8 +128,8 @@ public class TabBarItemView extends ViewGroup {
  titleSpannable.setSpan(new StyleSpan(ReactTypefaceUtils.parseFontStyle(fontStyle)), 0, title.length(), 0);
  if (fontSize != null)
  titleSpannable.setSpan(new AbsoluteSizeSpan(fontSize, true), 0, title.length(), 0);
  - styledTitle = titleSpannable;
  }
  + styledTitle = titleSpannable;
  if (tabView != null)
  tabView.setTitle(index, styledTitle);
  titleChanged = false;
  