Merge "Fixes duplicate sorting dialog"

    private List<SortItem> mSortingList;

    public static void show(FragmentManager fm, SortModel model) {

        if (fm.findFragmentByTag(TAG_SORTING_LIST) == null) {

            SortListFragment fragment = new SortListFragment();

            Bundle args = new Bundle();

            args.putParcelable(TAG_MODEL, model);

            fragment.setArguments(args);

            fragment.show(fm, TAG_SORTING_LIST);

        }

    }

    public SortListFragment() {

        super();