apply_filters( 'wp_save_post_revision_post_has_changed', bool $post_has_changed, WP_Post $latest_revision, WP_Post $post )

202			 * @since 4.1.0203			 *204			 * @param bool    $post_has_changed Whether the post has changed.205			 * @param WP_Post $latest_revision  The latest revision post object.206			 * @param WP_Post $post             The post object.207			 */208			$post_has_changed = (bool) apply_filters( 'wp_save_post_revision_post_has_changed', $post_has_changed, $latest_revision, $post );209 210			// Don't save revision if post unchanged.211			if ( ! $post_has_changed ) {212				return;213			}214		}