Making a contribution while not logged in over-writes Custom Addressee, Custom Email Greeting and Custom Postal Greeting data

Reproduced on the demo site as of 9/27/2011 and on a 3.4.6 installation.

This only happens when a user is NOT logged in and uses a contribution page with a profile containing address fields. See http://drupal.demo.civicrm.org/civicrm/contribute/transact?reset=1&id=5 for an example.

When logged in the behavior does not occur.

This leads me to the theory that the individual strict match dedupe rule is firing a process that erases any existing custom addressee data in a contact when the contribution is processed.

The screenshots show how the custom addressee data is erased after a contribution is made.