warning: already initialized constant OmniAuth::Strategies::KerberosSpnego::SESSION_KEY

10:04:00 rails-background-jobs.1 | /Users/remy/Code/GitLab/gdk-ee/gitlab/lib/omniauth/strategies/kerberos_spnego.rb:9: warning: already initialized constant OmniAuth::Strategies::KerberosSpnego::SESSION_KEY
10:04:00 rails-background-jobs.1 | /Users/remy/Code/GitLab/gdk-ee/gitlab/lib/omniauth/strategies/kerberos_spnego.rb:9: warning: previous definition of SESSION_KEY was here

omniauth/strategies/kerberos_spnego is required in config/initializers/omniauth.rb so there should be no need to require it again in app/controllers/omniauth_kerberos_spnego_controller.rb.