Answers file templating fails when copy message is provided

[MigQ2]

Describe the problem

The answers file templating fails when using a _message_before_copy and _message_after_copy

If the messages are removed the answers file gets correctly templated

I don't know how the copier internals work well enough to figure out why this is happening. Any ideas?

Template

I created a dummy template in https://github.com/MigQ2/dummy-copier-template, with the master branch working fine but the fix/broken-template branch doesn't work.

The only difference between both branches is the _message_before_copy and _message_after_copy, you can check that here

To Reproduce

I am using copier==9.4.1

You can run copier copy -d dummy_answer="myanswer" https://github.com/MigQ2/dummy-copier-template.git . and see that the copier answers file gets correctly templated:

Then run copier copy --vcs-ref fix/broken-template -d dummy_answer="myanswer" https://github.com/MigQ2/dummy-copier-template.git . and you will see the copier answers file doesn't resolve the template:

Logs

No response

Expected behavior

Answer file should be correctly templated when using a message

Screenshots/screencasts/logs

No response

Operating system

Linux

Operating system distribution and version

Ubuntu 22.04.3 LTS (running on WSL)

Copier version

9.4.1

Python version

3.10

Installation method

pip+pypi

Additional context

No response

[sisp]

Thanks for reporting this bug, @MigQ2! 🙏 I've been able to reproduce the bug (also on the current tip of the master branch) and submitted a PR that fixes it: #1840

[cbrown1234]

I had been running into this issue, and couldn't work out what was causing it for ages until I finally realised it was _message_before_copy. As I was looking into it to try to fix it, I came across your test, thanks for fixing @sisp!

Could I ask what's the release cadence? I'm interested when this (and another PR I've submitted #1892) could be available for users of our templates