chore: template update

.github/workflows/release.yml

@@ -7,6 +7,7 @@ on:
             - '.github/workflows/release.yml'
             - '**/*.py'
             - 'pyproject.toml'
+            - 'CHANGELOG.md.j2'
             - 'Dockerfile'
     pull_request:
         branches: [ "master" ]

templates/CHANGELOG.md.j2

@@ -8,13 +8,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [{{ context.version }}] - {% if context.tag_date %}{{ context.tag_date.strftime("%Y-%m-%d") }}{% else %}Unreleased{% endif %}
 
 {% set commit_count = 0 %}
+{% if context.history.released is defined and context.history.released[context.version] is defined and context.history.released[context.version]["elements"] is defined %}
 {% for type_, commits in context.history.released[context.version]["elements"] | dictsort %}
 ### {{ type_ | capitalize }}
 {% for commit in commits if commit.commit.parents | length == 1 %}
 * {{ commit.commit.message.rstrip() }} ([`{{ commit.commit.hexsha[:7] }}`]({{ commit.commit.hexsha | commit_hash_url }}))
 {% set commit_count = commit_count + 1 %}
 {% endfor %}
 {% endfor %}
+{% endif %}
 
 {% if commit_count > 5 %}
 *... and more. [See the full Changelog](https://github.com/{{ context.repo_owner }}/{{ context.repo_name }}/releases/tag/{{ context.version }})