Tokens in civicrm webform - not showing contact
I suspect those tokens are coming from another module (possibly CiviCRM itself). I never added any token support to webform_civicrm. That said, the best way to achieve your goal is probably to use the token from the contact_1:existing_contact field. This has the upshot of working correctly even when the user is anonymous. It's something like

[submission:values:civicrm_1_contact_1_contact_existing]


(but would need to be adjusted if it is inside a fieldset)