500 error on pipeline show page

There is a backend bug.

1. Open https://gitlab.com/gitlab-org/gitlab-ce/pipelines/1
2. See a 500 error occurred on the page.

Thanks @blackst0ne!

Sentry issue: https://sentry.gitlap.com/gitlab/gitlabcom/issues/33002/

Related to sorting CI/CD jobs' groups.

NoMethodError: undefined method `split' for nil:NilClass
  from app/models/commit_status.rb:148:in `sortable_name'
  from active_record/relation/delegation.rb:132:in `each'
  from active_record/relation/delegation.rb:132:in `sort_by'
  from active_record/relation/delegation.rb:132:in `public_send'
  from active_record/relation/delegation.rb:132:in `method_missing'
  from active_record/relation/delegation.rb:99:in `method_missing'
  from app/models/ci/stage.rb:20:in `groups'

/cc @ayufan @zj

Probable fix is just &.split

Do we actually have null name? I believe that this is possible, but pretty unlikely. @zj Could you prepare a fix?

@ayufan Look at the pipeline ID in the screenshot, its legacy support :)

Wow. :)

assigned to @zj

mentioned in merge request !12118 (merged)

mentioned in commit 93b555af

closed via merge request !12118 (merged)

mentioned in commit 1039f101

mentioned in merge request !14785