CI status on MR is broken

NoMethodError - undefined method `+' for nil:NilClass:
  app/models/project_services/gitlab_ci_service.rb:114:in `build_page'
  app/helpers/merge_requests_helper.rb:38:in `ci_build_details_path'
  app/views/projects/merge_requests/widget/_heading.html.haml:13:in `block in _app_views_projects_merge_requests_widget__heading_html_haml__2370657648200974936_70287725770900'
  app/views/projects/merge_requests/widget/_heading.html.haml:3:in `_app_views_projects_merge_requests_widget__heading_html_haml__2370657648200974936_70287725770900'
  actionview (4.1.12) lib/action_view/template.rb:145:in `block in render'
  activesupport (4.1.12) lib/active_support/notifications.rb:161:in `instrument'
  actionview (4.1.12) lib/action_view/template.rb:339:in `instrument'
  actionview (4.1.12) lib/action_view/template.rb:143:in `render'
  rack-mini-profiler (0.9.7) lib/mini_profiler/profiling_methods.rb:106:in `block in profile_method'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:306:in `render_partial'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:279:in `block in render'
  actionview (4.1.12) lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
  activesupport (4.1.12) lib/active_support/notifications.rb:159:in `block in instrument'
  activesupport (4.1.12) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.1.12) lib/active_support/notifications.rb:159:in `instrument'
  actionview (4.1.12) lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:278:in `render'
  actionview (4.1.12) lib/action_view/renderer/renderer.rb:47:in `render_partial'
  actionview (4.1.12) lib/action_view/helpers/rendering_helper.rb:35:in `render'
  haml (4.0.7) lib/haml/helpers/action_view_mods.rb:10:in `block in render_with_haml'
  haml (4.0.7) lib/haml/helpers.rb:89:in `non_haml'
  haml (4.0.7) lib/haml/helpers/action_view_mods.rb:10:in `render_with_haml'
  app/views/projects/merge_requests/widget/_open.html.haml:2:in 

/cc @dzaporozhets @ayufan

Reassigned to @vsizov

Will this be fixed by: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/1307 ?

no. It's almost unrelated.

I'm working on it.

Ok

@vsizov good. please fix it

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/1347

Status changed to closed

Mentioned in commit pfjason/gitlab-ce@bdfe6b96