Voting starts in March for the Drupal Association Board election.
Project machine name on d.org: template-picker (with a dash)
Module machine name: template_picker
These should if all possible match because it can cause issues with Drush, make, and other utilities that cannot resolve the mismatch. Typically what people have done is had to delete the existing repository and project, and re-create it with the proper namespace with an underscore.