emberjs/ember.js — pull request #9811 by eviltrout (2014-12-04 16:21:22+00:00)
Title: [BUGFIX stable] Fixes issues with unescaped strings `{{{x}}}`

This Fixes #9805 in stable and should work in beta as well.
There is a separate fix for canary that has also been submitted
where the structure has changed for HTMLBars.