YFM render error

[Alegr37]

Seems like render order error

Minimal repro, presets.yaml:

default:
  test:
    t: 1
    # testarray: [1]

test.md:

{% if test.testarray %}
{% for testval in test.testarray %}
  - {{ testval }}
{% endfor %}
{% endif %}

$ yfm -i ./ -o ~/render

leads to:

ERR  test.testarray is undefined or not iterable