Evaluate attribute is broken with loop

[sebastienbeau]

If you try do do something like this

{% for lang in langs %}
{% path_to about_us, locale: lang %}
{% endfor %}

with 'langs' => ['en', 'fr']
It will always evaluate lang='en' and never 'fr'.

The issue is here : https://github.com/locomotivecms/steam/blob/master/lib/locomotive/steam/liquid/tags/concerns/attributes.rb#L32

The first time it will evaluate the attribute to 'en' and update them, so the next iteration it's not anymore a liquid variable, it's just "en" so it will never evaluate to "fr".

Work in progess here : #170

[sebastienbeau]

@did

[did]

fixed by 89b7e02 while we're merging @sebastienbeau's PR about the new parsing attributes mechanism.