Anchors in yielded template are not used

[evs-chris]

Description:

Given the component <outer><#anchor /></outer> with the outer component having template {{yield content}}, one would expect r.attachChild(new Whatever(), { target: 'anchor' }) to find the anchor that's yielded within the outer component. That's apparently not the case.

Versions affected:

All up to 1.4-dev

Platforms affected:

All