ManageIQ/manageiq — pull request #884 by jrafanie (2014-10-19 01:46:13+00:00)
Title: Hashes do not need this monkey patch on ruby 1.9.3, 2.0.0, 2.1.3.

Subclasses of String with instance variables can be used as keys and do not lose
their instance variables.

The spec passes without the patch.