Need deletion of a bad project release.

http://drupal.org/node/1448242

This release was a mistake and I can't delete the tag:

jon@edison ~/Repos/drupal/provision_git $ git push origin :7.x-1.0-beta1
remote: The tag '7.x-1.0-beta1' is tied to a release on Drupal.org, and therefore cannot be relocated or deleted.
remote: error: hook declined to update refs/tags/7.x-1.0-beta1
To gundalo@git.drupal.org:project/provision_git.git
! [remote rejected] 7.x-1.0-beta1 (hook declined)
error: failed to push some refs to 'gundalo@git.drupal.org:project/provision_git.git'

Thanks!!