Introduce the @skip_interim tag, to temporarily skip some scenarios
Any scenario tagged with @skip_interim won't be executed by any job (chrome, firefox, goutte...). This is used to:
- Temporarily keep apart some tests (master only), while they are fixed.
- Reduce the noise that those tests cause, hiding other failures.
A new, specific job will be created to, exclusively, run those @skip_interim tests and keep us informed about status. Whenever that job is consistently passing, it will be time to remove the tag from core codebase.