latte 3 bug - Tag {first} must be inside {foreach} ... {/foreach} .... on n:foreach

[qwerin]

Version: 3

{var $a = ['a','b','c']}
<ul>
<li n:foreach="$a as $item" class="{first}prvni{/first}">{$item}</li>
</ul>

https://fiddle.nette.org/latte/#fa5e97d0d4

on latte 2.11 work