Ticket #4894: initial_post_id.patch

wp-includes/feed-atom.php

@@ -32 +32 @@
                 </author>
                 <title type="<?php html_type_rss(); ?>"><![CDATA[<?php the_title_rss() ?>]]></title>
                 <link rel="alternate" type="text/html" href="<?php the_permalink_rss() ?>" />
-                <id><?php the_guid(); ?></id>
+                <id><?php the_guid() || the_permalink_rss(); ?></id>
                 <updated><?php echo get_post_time('Y-m-d\TH:i:s\Z', true); ?></updated>
                 <published><?php echo get_post_time('Y-m-d\TH:i:s\Z', true); ?></published>
                 <?php the_category_rss('atom') ?>
@@ -44 +44 @@
 <?php do_action('atom_entry'); ?>
         </entry>
         <?php endwhile ; ?>
-</feed>
- No newline at end of file
+</feed>