Multiple failures in /qa/specs/features/browser_ui/2_plan/issue_boards/focus_mode_spec.rb | `uninitialized constant QA::EE`

Summary

Mutiple jobs fail in qa-nightly (such as https://gitlab.com/gitlab-org/quality/nightly/-/jobs/556397595) for the /2_plan/issue_boards/focus_mode_spec.rb

Stack trace

Failures:
   1) Plan Issue board focus mode focuses on issue board
      Failure/Error:
                EE::Page::Component::IssueBoard::Show.perform do |show|
                  show.click_focus_mode_button
        
                  expect(show.focused_board).to be_visible
                end
      
      NameError:
        uninitialized constant QA::EE
      # ./qa/specs/features/browser_ui/2_plan/issue_boards/focus_mode_spec.rb:20:in `block (3 levels) in <module:QA>'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:123:in `block in run'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `loop'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `run'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
      # ./spec/spec_helper.rb:69:in `block (2 levels) in <top (required)>'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:123:in `block in run'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `loop'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `run'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
      # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:37:in `block (2 levels) in setup'
      # ./qa/specs/runner.rb:71:in `perform'
      # ./qa/scenario/template.rb:10:in `block in perform'
      # ./qa/scenario/template.rb:8:in `tap'
      # ./qa/scenario/template.rb:8:in `perform'
      # ./qa/scenario/template.rb:33:in `perform'
      # ./qa/scenario/template.rb:10:in `block in perform'
      # ./qa/scenario/template.rb:8:in `tap'
      # ./qa/scenario/template.rb:8:in `perform'
      # ./qa/scenario/bootable.rb:28:in `launch!'

Screenshot / HTML page

plan_issue_board_focus_mode_focuses_on_issue_board

https://gitlab-org.gitlab.io/-/quality/nightly/-/jobs/556397595/artifacts/gitlab-qa-run-2020-05-18-04-18-05-4a17cc20/gitlab-ce-qa-b4c9bc7c/qa-test-2020-05-18-04-25-06-acedb3132caf3753/plan_issue_board_focus_mode_focuses_on_issue_board.html

Possible fixes

uninitialized constant QA::EE usually means a missing constant in ee.rb