private AnAction createRollbackGroup(boolean popup) {
    List<? extends AnAction> rollbackActions = createAdditionalRollbackActions();
    if (rollbackActions.isEmpty()) {
      return new RollbackDialogAction();
    }
    DefaultActionGroup group = new DefaultActionGroup();
    group.add(new RollbackDialogAction());
    group.addAll(rollbackActions);
    ActionUtil.copyFrom(group, IdeActions.CHANGES_VIEW_ROLLBACK);
    group.setPopup(popup);
    return group;
  }
private AnAction createRollbackGroup(boolean popup)