if / else conditions problem

[appsfactory-pl]

in example like below:
{% if is_granted("ROLE_USER") %}{% trans_default_domain app.user.translationDomain %}{% else %}{% trans_default_domain "messages" %}{% endif %}
always returns else branch

[stof]

{% trans_default_domain %} in Symfony is a tag that has effect at compile time, not at runtime. So wrapping it into a {% if %} tag does not change anything: a tag affects everything coming after it in the template.