Ticket #45249: 45249.diff

src/wp-admin/includes/post.php

@@ -2096 +2096 @@
                                         continue;
                                 }
 
+                                // If a meta box is just here for back compat, don't show it in the block editor.
+                                if ( isset( $meta_box['args']['__back_compat_meta_box'] ) && $meta_box['args']['__back_compat_meta_box'] ) {
+                                        continue;
+                                }
+
+                                // If a meta box doesn't work in the block editor, don't show it in the block editor.
+                                if ( isset( $meta_box['args']['__block_editor_compatible_meta_box'] ) && ! $meta_box['args']['__block_editor_compatible_meta_box'] ) {
+                                        continue;
+                                }
+
                                 $meta_boxes_per_location[ $location ][] = array(
                                         'id'    => $meta_box['id'],
                                         'title' => $meta_box['title'],