@idealien I don’t see how this is correct for changes made on the front end.
ACF handles it’s own revisions very similar to how wp-post-meta-revisions does. They both react to filters applied as a result of wp_insert_post which is only called when updates are made in the admin. acf_form_head() however only updates metadata on a single post ID. It does not trigger any functions that would engage ACF’s revisioning or wp-post-meta-revisions revisioning. Altering WP_Query won’t reveal any revisions resulting from use of acf_form() because it doesn’t create any.
