browser_ui/4_verify/pipeline/merge_mr_when_pipline_is_blocked_spec.rb | Verify When pipeline is blocked can still merge MR successfully

gitlab-org/gitlab#20426 (closed) was original submitted as feature request and though it has been re-classified as a bug, there still opportunity for a new E2E test.

Steps

1. Log into GitLab
2. Create a new project with custom CI yml file that results in blocked pipeline (needs a manual job and don't start it)
3. Create and push a new MR
4. Wait for pipeline to start running (this pipeline won't finish because of manual job blocking it)
5. Click 'Merge' button and choose option merge immediately
6. Verify MR is merged successfully