Beaver Themer does not display a field’s default value

I have created an optional plain text field for a CPT. I have set a default value for the field and linked the field to a module in a Beaver Themer Singular layout for that CPT.

The idea is that, if the field is left empty, then the default value for the field will be displayed. Otherwise, the value entered by the content author should be displayed.

Unfortunately, when the field is left empty, nothing is displayed.

Is there a way to resolve this?