Adding List to a Form Dropdown Element always selects last item

Last item in the list is always selected when a list is added to a Form dropdown

Issue Description

Create a list as below:

When this list is added to a Form Dropdown list item, it always selects the last item as shown below:

Root Cause

This behavior is by design.

Resolution

Add an extra item at the end of the list so it appears as a default option, as shown below:

When the Form is populated with this value, it appears as below: