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.
Returns a WOOF_Site object representing the site for the given id, or the current site if the id is not provided, or we’re not in a multi-site environment.
Integer $id = null
The integer database id of the site, or null to return the current site.