Index: src/wp-admin/includes/meta-boxes.php
===================================================================
--- src/wp-admin/includes/meta-boxes.php	(revisão 46065)
+++ src/wp-admin/includes/meta-boxes.php	(cópia de trabalho)
@@ -1549,9 +1549,9 @@
 	 *
 	 * @since 3.0.0
 	 *
-	 * @param string  $post_type Post type of the post.
-	 * @param string  $context   string  Meta box context.
-	 * @param WP_Post $post      Post object.
+	 * @param string         $post_type Post type of the post.
+	 * @param string         $context   Meta box context.
+	 * @param string|WP_Post $post      Post object or an empty string if used outside the Post Edit screen.
 	 */
 	do_action( 'do_meta_boxes', $post_type, 'normal', $post );
 	/** This action is documented in wp-admin/includes/meta-boxes.php */