inline edit: address custom date fields break form load

create a custom field of type date, attached to addresses
view the address and click the inline block edit link
result: form hangs on load

can be tested here:
http://sandbox.drupal.civicrm.org/civicrm/contact/view?reset=1&cid=125&context=search

the problem is with CRM_Contact_Form_Edit_Address::buildQuickForm()
where we set default values for custom fields, we have the following:
@eval("\${$key} = " .$val . ";" );

if changed to:
@eval("\${$key} = '" .$val . "';" );

it fixes the issue (difficult to see above, but we're wrapping $val in single quotes). I believe this happens because there are backslashes in the date, and so when php evals, it doesn't treat those like a string value.

that said –
the logic in that whole block seems pretty messed up. we retrieve defaults, then we cycle through the values and run the eval statement above, but then we set the defaults array to an empty address array variable. so I'm not sure why we're even cycling through the values.