Global Twig parameter transformation in Symfony 2.7 -


i have added config parameters in config.yml like:

twig:   globals:     brands:       'land-rover': 'land rover' 

the problem have once use inside twig, land-rover becomes land_rover.

{% slugkey, name in brands %}     <li><a href="{{ path('getsearchresultsbybrand', {'slug': slugkey, 'edition': edition.edition}) }}">{{ name }}</a></li> {% endfor %} 

why transformation happening automatically , how can prevent it?