Hi Team,
We have done some customization in Purchase Order using custom fields.
Address details were fetching in one of the field set with Address as on option.
After upgrading to Ver 8 the details are not being fetched.
use the get_address_display method to fetch and render the address value in field.
e.g erpnext.utils.get_address_display(frm, address_field, display_field)
where address field is the address link field and display_field is the field where you want to display address.