WTF production code

var list = _cmsMenuItemRepository.Table.ToList();
foreach (var i in list)
{
    i.Items.Clear();
}
foreach (var i in list)
{
    if (i.ParentGuid != null)
    {
        var parent = list.FirstOrDefault(t => t.Guid == i.ParentGuid);
        if (parent != null)
        {
            parent.Items.Add(i);
        }
    }
}
return _cmsMenuItemRepository.Table.ToList();
// http://bash.org/?240849