Ticket #22204: insert_post.patch

.php

@@ -1026 +1026 @@
                         // empty value deletes, non-empty value adds/updates
                         if ( ! $post_data['post_thumbnail'] )
                                 delete_post_thumbnail( $post_ID );
-                        elseif ( ! set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] ) )
+                        elseif ( ! get_post( absint( $post_data['post_thumbnail'] ) ) )
                                 return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
+                        set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] );
                         unset( $content_struct['post_thumbnail'] );
                 }