Street address state field does not work properly if there is a place holder

Please provide the YAML of a minimal form that exhibits the bug.

uuid: a9a8a8d6-da67-43fd-8c3b-0956128c185e
langcode: en
status: open
dependencies: { }
weight: 0
open: null
close: null
uid: 1
template: false
archive: false
id: fornl_membership_form_buggy
title: 'FORNL Membership form buggy'
description: ''
category: ''
elements: |-
streetaddress:
'#type': webform_address
'#title': 'Street address'
'#required': true
'#multiple__no_items_message': '

No items entered. Please add items below.

'
'#address__title_display': before
'#address__required': true
'#address_2__title_display': before
'#city__title_display': before
'#city__required': true
'#state_province__placeholder': Tennessee
'#state_province__title_display': before
'#state_province__required': true
'#postal_code__title_display': before
'#postal_code__required': true
'#country__access': false
actions:
'#type': webform_actions
'#title': 'Submit button(s)'
'#submit__label': 'Submit and pay dues'
css: ''
javascript: ''
settings:
ajax: false
ajax_scroll_top: form
ajax_progress_type: ''
ajax_effect: ''
ajax_speed: null
page: true
page_submit_path: ''
page_confirm_path: ''
page_theme_name: ''
form_title: both
form_submit_once: false
form_open_message: ''
form_close_message: ''
form_exception_message: ''
form_previous_submissions: true
form_confidential: false
form_confidential_message: ''
form_disable_remote_addr: false
form_convert_anonymous: false
form_prepopulate: false
form_prepopulate_source_entity: false
form_prepopulate_source_entity_required: false
form_prepopulate_source_entity_type: ''
form_unsaved: false
form_disable_back: false
form_submit_back: false
form_disable_autocomplete: false
form_novalidate: false
form_disable_inline_errors: false
form_required: false
form_autofocus: false
form_details_toggle: false
form_reset: false
form_access_denied: default
form_access_denied_title: ''
form_access_denied_message: ''
form_access_denied_attributes: { }
form_file_limit: ''
form_attributes: { }
form_method: ''
form_action: ''
share: false
share_node: false
share_theme_name: ''
share_title: true
share_page_body_attributes: { }
submission_label: ''
submission_exception_message: ''
submission_locked_message: ''
submission_log: false
submission_excluded_elements: { }
submission_exclude_empty: false
submission_exclude_empty_checkbox: false
submission_views: { }
submission_views_replace: { }
submission_user_columns: { }
submission_user_duplicate: false
submission_access_denied: default
submission_access_denied_title: ''
submission_access_denied_message: ''
submission_access_denied_attributes: { }
previous_submission_message: ''
previous_submissions_message: ''
autofill: false
autofill_message: ''
autofill_excluded_elements: { }
wizard_progress_bar: true
wizard_progress_pages: false
wizard_progress_percentage: false
wizard_progress_link: false
wizard_progress_states: false
wizard_start_label: ''
wizard_preview_link: false
wizard_confirmation: true
wizard_confirmation_label: ''
wizard_auto_forward: true
wizard_auto_forward_hide_next_button: false
wizard_keyboard: true
wizard_track: ''
wizard_prev_button_label: ''
wizard_next_button_label: ''
wizard_toggle: false
wizard_toggle_show_label: ''
wizard_toggle_hide_label: ''
wizard_page_type: container
wizard_page_title_tag: h2
preview: 0
preview_label: ''
preview_title: ''
preview_message: ''
preview_attributes: { }
preview_excluded_elements: { }
preview_exclude_empty: true
preview_exclude_empty_checkbox: false
draft: none
draft_multiple: false
draft_auto_save: false
draft_saved_message: ''
draft_loaded_message: ''
draft_pending_single_message: ''
draft_pending_multiple_message: ''
confirmation_type: url
confirmation_url: /paypal-dues
confirmation_title: 'Please go to PayPal to pay your dues'
confirmation_message: ''
confirmation_attributes: { }
confirmation_back: true
confirmation_back_label: ''
confirmation_back_attributes: { }
confirmation_exclude_query: false
confirmation_exclude_token: false
confirmation_update: false
limit_total: null
limit_total_interval: null
limit_total_message: ''
limit_total_unique: false
limit_user: null
limit_user_interval: null
limit_user_message: ''
limit_user_unique: false
entity_limit_total: null
entity_limit_total_interval: null
entity_limit_user: null
entity_limit_user_interval: null
purge: none
purge_days: null
results_disabled: false
results_disabled_ignore: false
results_customize: false
token_view: false
token_update: false
token_delete: false
serial_disabled: false
access:
create:
roles:
- anonymous
- authenticated
users: { }
permissions: { }
view_any:
roles: { }
users: { }
permissions: { }
update_any:
roles: { }
users: { }
permissions: { }
delete_any:
roles: { }
users: { }
permissions: { }
purge_any:
roles: { }
users: { }
permissions: { }
view_own:
roles: { }
users: { }
permissions: { }
update_own:
roles: { }
users: { }
permissions: { }
delete_own:
roles: { }
users: { }
permissions: { }
administer:
roles: { }
users: { }
permissions: { }
test:
roles: { }
users: { }
permissions: { }
configuration:
roles: { }
users: { }
permissions: { }
handlers: { }
variants: { }

P)laceholder are not the same as the default_value.

The below example set the state to Tennessee.

webform_address:
  '#type': webform_address
  '#title': webform_address
  '#default_value':
    address: ''
    address_2: ''
    city: ''
    state_province: Tennessee
    postal_code: ''
    country: ''