On 2 occasions (2 different forms) I've notices that the Auto Fill feature uses both the first and last names to populate the name fields on the web form. E.g. In 1Password you Identification set up with Bill as the First Name and Smith as the Last Name. When you go to a web based form and select the Identification card and click on Autofill, it will fill "Bill Smith" as the first name on the form and "Bill Smith" as the last name.
1Password Version: Not Provided
Extension Version: 1.16.1
OS Version: Windows 10
Sync Type: Not Provided