--TEST--
"filter" tags can be nested at will
--DEPRECATION--
The "filter" tag is deprecated since Twig 2.9, use the "apply" tag instead.
The "filter" tag is deprecated since Twig 2.9, use the "apply" tag instead.
--TEMPLATE--
{% filter lower|title %}
  {{ var }}
  {% filter upper %}
    {{ var }}
  {% endfilter %}
  {{ var }}
{% endfilter %}
--DATA--
return ['var' => 'var']
--EXPECT--
  Var
      Var
    Var
