Ticket #18812: 18812.2.diff

Index: wp-includes/class-wp-xmlrpc-server.php
===================================================================
--- wp-includes/class-wp-xmlrpc-server.php      (revision 40705)
+++ wp-includes/class-wp-xmlrpc-server.php      (working copy)
@@ -2398,16 +2398,10 @@
                        }
                }
 
-               // We've got all the data -- post it:
                $postdata = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'comment_status', 'ping_status', 'to_ping', 'post_type', 'post_name', 'post_password', 'post_parent', 'menu_order', 'tags_input', 'page_template');
 
-               $post_ID = wp_insert_post($postdata, true);
-               if ( is_wp_error( $post_ID ) )
-                       return new IXR_Error(500, $post_ID->get_error_message());
+               $post_ID = $postdata['ID'] = get_default_post_to_edit( $post_type, true )->ID;
 
-               if ( !$post_ID )
-                       return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));
-
                // Only posts can be sticky
                if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
                        if ( $content_struct['sticky'] == true )
@@ -2430,6 +2424,13 @@
                if ( isset( $content_struct['wp_post_format'] ) )
                        wp_set_post_terms( $post_ID, array( 'post-format-' . $content_struct['wp_post_format'] ), 'post_format' );
 
+               $post_ID = wp_insert_post( $postdata, true );
+               if ( is_wp_error( $post_ID ) )
+                       return new IXR_Error(500, $post_ID->get_error_message());
+
+               if ( !$post_ID )
+                       return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));
+
                logIO('O', "Posted ! ID: $post_ID");
 
                return strval($post_ID);