emberjs/ember.js — pull request #4714 by rjackson (2014-04-13 21:19:15+00:00)
Title: [BUGFIX beta] Properly resolve helpers from {{unbound}}.

Prior to this referencing a helper that would normally need to be looked up
with the `{{unbound}}` helper would not work.

This meant that you could not use helpers that are stored in the container.

This commit fixes that issue.

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Thanks to @jasonmit for reporting the issue.

Closes #4713.