In a complex widget, hide subwidget labels option does not default to indicated value

Steps to reproduce, in Studio:

• Create a document type extending Document (ex: Book)
• In the schema tab, add a field of type Complex (ex: author)
• In a layout, place the widget corresponding to this field and look at the default values:

Hide subwidgets label is selected as Yes and not as No (default)

Same behavior applies to a table layout for instance.