php - Doctrine MongoDB ODM embed document appending elements adding blank array

return $this->persistantManager->createQueryBuilder( get_class( $user ) )
        ->field( 'field' )
        ->equals( 'data' )
        ->findAndUpdate()
        ->returnNew()
        ->field( 'info' )
        ->pushAll( $user->geInfo() )
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$user->geInfo() returnsarray of info object. after executing it it adds a blank array everytime uner info field .$user->geInfo() returns populated data which it supposed to be inserted but it is not happening

User object field annotation

/** @ODM\EmbedMany(targetDocument="Info") */
    private $info = [];
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Info Object annotation

 /** @ODM\ID */
        private $info;

        /** @ODM\Field(type="string") @ODM\Index */
        private $details;
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