template task breaks caching system

[tsuchm]

When using template task

- name: Put preferences for backported packages.
  template:
    src: preferences.j2
    dest: /etc/apt/preferences.d/backports
    owner: root
    group: root
    mode: 0644

with the following template

Package: *
Pin: release n={{ansible_distribution_release}}-backports
Pin-Priority: 500

ansible-bender judges that the cached image is modified by this task, even if ansible_distribution_relase is not changed.

This behavior causes unnecessary actions following template task.

[TomasTomecek]

Thanks for opening this issue.

This is interesting, I'd need to dig in and see what's happening.