message: Use optimistic removedTagsAccountData state in TagOrderStore
  when receiving TagOrderActions.moveTag.pending, which now exposes
  this state.
diff: @@ -89,6 +89,7 @@ class TagOrderStore extends Store {
  // Optimistic update of a moved tag
  this._setState({
  orderedTags: payload.request.tags,
  + removedTagsAccountData: payload.request.removedTags,
  });
  break;
  }
  