getlantern/lantern-controller — pull request #53 by aranhoide (2013-12-05 17:43:11+00:00)
Title: Stop making the inviter's fallbackProxyUserId an ancestor of Invites.

This was making all transactions involving status changes to invites
made by users with a given fallbackProxyUserId compete with each
other unnecessarily.

Symptoms include sending of duplicate invite emails (because the
task that sends email was dying trying to set the Invite to 'sent') and
invites not being processed because of too much contention.