Ticket #18049: 18049.patch

wp-admin/includes/post.php

@@ -424 +424 @@
                 if ( current_theme_supports( 'post-formats' ) && post_type_supports( $post->post_type, 'post-formats' ) && get_option( 'default_post_format' ) )
                         set_post_format( $post, get_option( 'default_post_format' ) );
         } else {
+                $post = new stdClass;
                 $post->ID = 0;
                 $post->post_author = '';
                 $post->post_date = '';