Ticket #27802: 27802.2.diff

src/wp-includes/post.php

@@ -2276 +2276 @@
 
         $counts = array();
         foreach( (array) $count as $row ) {
-                $counts[ $row['post_mime_type'] ] = $row['num_posts'];
+                if ( empty( $row['post_mime_type'] ) ) {
+                        $counts['unknown'] = $row['num_posts'];
+                } else {
+                        $counts[ $row['post_mime_type'] ] = $row['num_posts'];
+                }
         }
         $counts['trash'] = $wpdb->get_var( "SELECT COUNT( * ) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status = 'trash' $and");