Ticket #4710: future_posts.diff

wp-includes/post.php

@@ -1834 +1834 @@
 
 function _future_post_hook($post_id, $post) {
         // Schedule publication.
+        wp_clear_scheduled_hook( 'publish_future_post', $post->ID );
         wp_schedule_single_event(strtotime($post->post_date_gmt. ' GMT'), 'publish_future_post', array($post->ID));
 }