Issue reported by @cj, moved from fxn/zeitwerk#21.

This issue is in reference to fxn/zeitwerk#19 (comment).

Adding code to a controller once the server has loaded does not get executed/updated.

Steps to reproduce:

• rails new no-reload -d postgresql -m https://raw.githubusercontent.com/excid3/jumpstart/c6c0de0/template.rb
• cd no-reload
• foreman start
• visit http://localhost:5000/users/sign_up
• add the line after_action { pp 'foo' } to app/controllers/application_controller.rb
• refresh the page
• does not out put 'foo' to the console.

Expected outcome:

• print foo to the console

Current work around:

• add config.autoloader = :classic to config/application.rb

Screencast demonstrating issue:

https://cl.ly/577db63e745a

@fxn here is the Zeitwerk trace https://gist.github.com/cj/ffc8b578412034cebdd410bf534e4ab0