Can we retract a post to Drupal Planet that has already been submitted?

Apologies if this is not an appropriate use of this queue. But given this seems to be the place to report issues with specific content posts.

We accidentally placed a pre-formatted post in our Planet feed. The resulting published on post http://drupal.org/planet displays content from a number of fields unintended for the Drupal.org audience -- both for relevancy and display reasons. We've since corrected our feed and would like to resubmit if possible.

The post is entitled "Free Community Training" posted by Advantage Labs on June 14, 2012 at 2:10pm.

I realize it may be too late for this instance, but it would be good to know the process for possible retraction for future situations.