How to let a user change their own username? I can't seem to figure out how to let users change their own username. I'm running Aegir with about 10 Open Atrium sites. With permissions I've checked "change own username" for the master Aegir site, as well as the Open Atrium sites. For giggles, I enabled every role to "change own username"..  

But when I try to change my username in OpenAtrium and click save, it confirms "changes have been saved", but the username doesn't actually change.  This has ballooned into a huge issue for us.  I'm hoping there is some obvious dumb thing I need to do.  Thoughts?
Changing a username inside a hosted site is completely up to the OpenAtrium Drupal installation.
Aegir does not usually interact with this.

I just verified that it works OK on a clean Aegir 3 install with a standard Drupal site.

So @Bisonbleu's comment seems correct: 


  That's done in permissions. In Drupal 7, go to admin/people/permissions and look under User: Change own username.