Call to undefined method Doctrine\ORM\Mapping\OneToManyMapping::getQuotedJoinColumnName()

with the $config->setAllowPartialObjects(false); i make an query to
phrase, and get a phrase object. sofar so good

but as i try to get the type or lexical member like $phrase->getType()
it throws a Fatal error like this:

Fatal error: Call to undefined method
Doctrine\ORM\Mapping\OneToManyMapping::getQuotedJoinColumnName() in
/usr/local/zend/apache2/htdocs/doctrine/lib/Doctrine/ORM/Persisters/StandardEntityPersister.php
on line 599

i read this on doctrine-user groups

http://groups.google.com/group/doctrine-user/browse_thread/thread/a15d430b4ae483b4/dc7665ed137a4e78?lnk=gst&q=getQuotedJoinColumnName#dc7665ed137a4e78

and i take a look if the line

$owningAssoc = $this->_class->associationMappings[$coll->getMapping()->mappedByFieldName];

present on StandardEntityPersister#loadOneToManyCollection.

and yes. its present. but i still got this error.