join query with customer table getSize() count mismatch with the mysql db result.
Query
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$collection = Mage::getModel('customer/customer')->getCollection();
$collection->getSelect()->join(array('endorsement'=>'flendorsement'),'e.entity_id = endorsement.to_user_id',array('total_endorsement'=>'COUNT(endorsement.endorsement_id)'));
$collection->getSelect()->group('endorsement.to_user_id');
When i execute this query in mysql phpmyadmin, there will show the 3rows,
but getSize() method return "2"
see the screen below: