Notice: Array to string conversion in CRM_Utils_Address::format() (line 212 of CRM/Utils/Address.php).

When I attempt to make a contribution at:
http://example.com/civicrm/contact/view/contribution?reset=1&action=add&cid=34&context=contribution&mode=live

I receive the following error when I click save:
========
Notice: Array to string conversion in CRM_Utils_Address::format() (line 212 of CRM/Utils/Address.php).
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I'm using CiviCRM 4.2 on PHP 5.5

I tracked this down to this array set:
https://github.com/CiviCRM42/civicrm42-core/blob/4.2/CRM/Contribute/Form/Contribution.php#L1262

which is then not processed by
https://github.com/CiviCRM42/civicrm42-core/blob/4.2/CRM/Contact/BAO/Individual.php#L235

because of this, the email is passed as an array, rather than a string.

I've attached the backtrace for your convenience.