Ticket #27439: class-wp-media-list-table.php.patch

wp-admin/includes/class-wp-media-list-table.php

@@ -329 +329 @@
                         $parent_type = get_post_type_object( $parent->post_type );
 ?>
                         <td <?php echo $attributes ?>><strong>
-                                <?php if ( current_user_can( 'edit_post', $post->post_parent ) && $parent_type->show_ui ) { ?>
+                                <?php if ( isset( $parent_type->show_ui ) && current_user_can( 'edit_post', $post->post_parent ) && $parent_type->show_ui ) { ?>
                                         <a href="<?php echo get_edit_post_link( $post->post_parent ); ?>">
                                                 <?php echo $title ?></a><?php
                                 } else {