{% set _categories = (handler.domain.problemCategories or model.system.get('problem.categories'))|parseYaml %}
{%- for category, sub_categories in _categories -%}
{{ category }}
{%- endfor -%}
{%- for category, sub_categories in _categories -%}

{{ _('Selected categories') }}:

{{ category }}
{%- for sub_category in sub_categories -%}
{{ sub_category }}
{%- endfor -%}

{{ category }}:

{{ category }}
{%- for sub_category in sub_categories -%}
{{ sub_category }}
{%- endfor -%}
{%- endfor -%}