Ticket #28135: 28135.diff

wp-includes/ms-blogs.php

@@ -874 +874 @@
  */
 function _update_blog_date_on_post_publish( $new_status, $old_status, $post ) {
         $post_type_obj = get_post_type_object( $post->post_type );
-        if ( ! $post_type_obj->public )
+        if ( empty( $post_type_obj ) || ! $post_type_obj->public )
                 return;
 
         if ( 'publish' != $new_status && 'publish' != $old_status )

wp-includes/post.php

@@ -2314 +2314 @@
         $cache_key = 'posts-' . $type;
         if ( 'readable' == $perm && is_user_logged_in() ) {
                 $post_type_object = get_post_type_object( $type );
-                if ( ! current_user_can( $post_type_object->cap->read_private_posts ) ) {
+                if ( ! empty( $post_type_object ) && ! current_user_can( $post_type_object->cap->read_private_posts ) ) {
                         $cache_key .= '_' . $perm . '_' . get_current_user_id();
                 }
         }