zendframework/zf2 — pull request #2987 by marc-mabe (2012-11-16 14:01:37+00:00)
Title: fixed Zend\Session\Container::exchangeArray

Because of ``Zend\Session\Container extends ArrayObject`` which implements that method.
http://php.net/manual/arrayobject.exchangearray.php

It will be used to implement ``flush()`` within a session storage adapter of ``Zend\Cache``.
https://github.com/marc-mabe/zf2/blob/feature/cache-session-storage/library/Zend/Cache/Storage/Adapter/Session.php#L104