No way to re-export a post that has been deleted from Wordpress

If you export a post to a Wordpress.org site using the add-on, and then go to the Wordpress wp-admin and delete that post, the add-on doesn't recognize that the post has been removed. So it still has an "update" button, but if you click "update" you get an error "unknown post".

I would like a way to export a document as a new draft even if it has been exported before (whether or not the previous exports were deleted).

Start by tracing the add-on's export and update actions, then inspect how it handles the WordPress response for a deleted post and the reported "unknown post" error. The change is complete when a previously exported document can be exported again as a new draft after its WordPress post is deleted.

Written by the indexing model from the issue text.