Attachments aren't exported when selecting a Custom Post Type on export

[dannydehaan]

When i'm exporting my full website including the custom post type's, all the data is exported correctly including thumbnails. In my XML i get the following lines:

<wp:postmeta>
	<wp:meta_key>_thumbnail_id</wp:meta_key>
	<wp:meta_value><![CDATA[855]]></wp:meta_value>
</wp:postmeta>

And when searching for this ID, i can find an attachment with ID 855 like the following:

<wp:post_id>855</wp:post_id>
<wp:post_date>2011-11-24 19:49:23</wp:post_date>
<wp:post_date_gmt>2011-11-24 17:49:23</wp:post_date_gmt>
<wp:comment_status>open</wp:comment_status>
<wp:ping_status>open</wp:ping_status>
<wp:post_name>wco-6</wp:post_name>
<wp:status>inherit</wp:status>
<wp:post_parent>43</wp:post_parent>
<wp:menu_order>0</wp:menu_order>
<wp:post_type>attachment</wp:post_type>

When i'm selecting to only export my custom post type, i can see the block that's defining the _thumbnail_id, but i can't find the attachment data for that ID. I've already searched in the wp-admin/includes/export.php file, but i can't find where the bug is.

[duck_]

Duplicate of #17379.

Yep, it sucks. The solution is probably to do something like looking through the list of posts to export and then also grab any posts/attachments that have any of those as a parent.

[dannydehaan]

Ahhh ok, i'm sorry, couldn't find it when i were searching Trac. I'll look if i'm having some time this weekend to create a patch.