Use with_default_organization instead of with_current_organization

app/controllers/registrations_controller.rb

ee/app/controllers/trial_registrations_controller.rb

ee/spec/controllers/ee/registrations_controller_spec.rb

ee/spec/features/invites_spec.rb

ee/spec/features/registrations/saas/invite_flow_spec.rb

...eatures/registrations/saas/standard_flow_with_2fa_spec.rb

...ith_trial_from_external_site_without_confirmation_spec.rb

...art_trial_from_external_site_without_confirmation_spec.rb

ee/spec/features/signup_spec.rb

ee/spec/features/trial_registrations/signup_spec.rb

ee/spec/features/users/signup_spec.rb

ee/spec/requests/ee/registrations_controller_spec.rb

ee/spec/requests/trial_registrations_controller_spec.rb

spec/controllers/registrations_controller_spec.rb

spec/features/invites_spec.rb

spec/features/registrations/registration_spec.rb

spec/features/users/signup_spec.rb

spec/requests/registrations_controller_spec.rb

spec/services/users/registrations_build_service_spec.rb

...ort/helpers/disable_namespace_organization_validation.yml