cakephp/cakephp — pull request #3481 by okinaka (2014-05-13 12:20:24+00:00)
Title: Unset $db in DboSource::read().

After calling $db->queryAssociatin(), it is necessary to unset $db.
This reverts commit 52d425737af584d33352ff0540dbf769006d82f5.