Stepper Tracking: incorrect signup_domain_origin for Skip Domain + Free Plan scenarios

[skim1220]

👋 Hi Team,

I noticed that in the Stepper onboarding flow, the "Skip Domain + Free Plan" scenarios are incorrectly logging signup_domain_origin property for calypso_signup_complete event. This should be logged as choose-later, but the Stepper flow is logging it as free. See the recordings and details below. This issue does not occur in the Classic onboarding flow.

• Stepper: https://wordpress.com/setup/onboarding/es/?ref=seahtest
• Classic: https://wordpress.com/start/onboarding/es/?ref=seahtest

Select .blog domain > Select “Elegir mi dominio más tarde” option in the right pane + Free Plan (recording)

• flow: onboarding
• is_new_user: true
• is_new_site: true
• has_cart_items: false
• signup_domain_origin: free
• site_count: 0
• site_id_label: wpcom
• _en: calypso_signup_complete

skip_domain_right_pane_free_plan_v3.mp4

Skip domain (click “Ver los planes de pago »”) + Free Plan (Stepper: recording)

• flow: onboarding
• is_new_user: true
• is_new_site: true
• has_cart_items: false
• signup_domain_origin: free
• site_count: 0
• site_id_label: wpcom
• _en: calypso_signup_complete

skip_domain_free_plan_v3.mp4