Fix parent object loading when calling ready() on object chains with new models.

Review Request #3989 — Created March 22, 2013 and submitted — Latest diff uploaded

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Review Board
master

Reviewers

Fix parent object loading when calling ready() on object chains with new models.

I've been running into an issue where parts of the javascript code create a
review object, then create a comment. The hierarchy here goes RB.ReviewRequest
-> RB.Review -> RB.<comment type>. Calling ready() on the comment will fail
to load the ReviewRequest, which means that the Review won't have a valid url.
Ran js-tests