{foreach item="item" from=$root.page.news.item }
{foreach from=$item.Tags item=tagitem key=kex}
{if !$done.$tagitem}
{$done.$tagitem = 1}
{$tagitem}
{/if}
{/foreach}
{/foreach}
I am not sure it works with all the versions.
Maybe it would be a bit cleaner to call an array_unique()
in the php.