Viewing all my merge requests results in an HTTP 500 on gitlab.com

When viewing all my merge requests, regardless of their state (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests?milestone_id=&scope=all&sort=created_desc&state=all&utf8=%E2%9C%93&assignee_id=&author_id=209240&milestone_title=&label_name=) GitLab.com responds with an HTTP 500. This works fine when viewing for example the merge requests of @dzaporozhets (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests?milestone_id=&scope=all&sort=created_desc&state=all&utf8=%E2%9C%93&assignee_id=&author_id=444&milestone_title=&label_name=)

@jnijhof / @jacobvosmaer: do we have any way to see production errors, besides from that one server running New Relic?

cc @rspeicher @DouweM @dzaporozhets

It also fails when viewing merged merge requests: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests?milestone_id=&scope=all&sort=created_desc&state=merged&utf8=%E2%9C%93&assignee_id=&author_id=209240&milestone_title=&label_name=

Aha, I'm getting the following error locally:

NoMethodError - undefined method `ci_commit' for nil:NilClass:
  app/models/merge_request.rb:480:in `ci_commit'
  app/views/projects/merge_requests/_merge_request.html.haml:1:in `_app_views_projects_merge_requests__merge_request_html_haml__3364275716158550765_47444706597780'
  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'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:399:in `block in collection_with_template'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:395:in `collection_with_template'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:291:in `render_collection'
  actionview (4.1.12) lib/action_view/renderer/partial_renderer.rb:275: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:274: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/_merge_requests.html.haml:2:in `_app_views_projects_merge_requests__merge_requests_html_haml__33433358371892403_47444707317500'
  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'
  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'

Ah, looking at my local DB (which is fairly recent) this is caused by merge request !1201 (merged) which updated Racc using a fork of gitlab-ce, which no longer exists.

The problematic code in question was added in commit fe6ec80e.

mentioned in merge request !1859 (merged)

Fix is in !1859 (merged).

mentioned in commit d496a6b9

Status changed to closed by commit 0e0c9084

mentioned in commit aeaa5b50

mentioned in issue #3573 (closed)

mentioned in commit 0e0c9084

mentioned in merge request !14785