As highlighted in the failing test case, there are situations where theuse should not be dumped.
Can you please provide a test case that fails? If not, can you provide a reproducer instead?

Hi Nicolas,

Of course. Here you can will find an example project.

https://github.com/DarkyMuc/symfony_di_example
composer install
symfony server:start -port 8001

After you call this project via browser, you receive the error "Notice: Undefined variable: container"

I think it's the combination of shared: false and lazy: true in the service.yaml.

Greetings Markus

Thanks for all the details, fixed in#37953