Masterpress 1.3.6 is a compatibility release. It resolves an edge case with shared fieldsets not working for MySQL 8 when the fieldset is limited to more than 1 post type or taxonomy or excluding any post types or taxonomies.
MPFT_RelatedUserRole :: get_delegate()
Implements MPFT::forward to return the first user role, regardless of whether or not the field is setup to allow multiple roles to be selected (iterator-related methods are setup to regard the multiple items though). This allows calls to be made on the field object directly as if the field is a user role object itself.
Note: This method is intended for internal use and should not be called directly.