{% macro github_reference(number, path) -%}
  {% if view.github_repository_url -%}
    <a class="issue-number" href="{{ view.github_repository_url }}/{{ path }}/{{ number }}" target="_blank" rel="noopener noreferrer">#{{ number }}</a>
  {%- else -%}
    <strong class="issue-number">#{{ number }}</strong>
  {%- endif %}
{%- endmacro %}
{#- An issue in another repository links there and is named with it, as GitHub names one. -#}
{% macro issue_reference(issue) -%}
  {% if issue.repository -%}
    <a class="issue-number" href="https://github.com/{{ issue.repository }}/issues/{{ issue.number }}" target="_blank" rel="noopener noreferrer">{{ issue.repository }}#{{ issue.number }}</a>
  {%- else -%}
    {{ github_reference(issue.number, "issues") }}
  {%- endif %}
{%- endmacro %}