I'm using CiviCRM V4.4.13 and Drupal 7.41.
I have created a profile for batch updating several custom fields and the status of participants on our events. However, some participants seem to get sent a receipt after saving the updates (around 5-10% of participants) as if we had gone into their participant record and selected send confirmation and receipt. Is this a bug or is this expected behavior because of X reason?