Query overrwtires explicitly passed connection with bound one

Doctrine_Query::loadRoot() and Doctrine_Query::buildInheritanceJoinSql() have the following snippet of code:

        // get the connection for the component
        $manager = Doctrine_Manager::getInstance();
        if ($manager->hasConnectionForComponent($name)) {
            $this->_conn = $manager->getConnectionForComponent($name);
        }

Seems clear that here we would like to use the connection bound to the given component instead of default one. But if we explicitly pass a connection in (like Doctrine_Query::create($conn)), then this code will also overwrite it with bound connection, although passed connection should have higher priority than bound one.

I would like to prepare a patch, but I'm not absolutely sure, why we check for bound connection only inside loadRoot() and buildInheritanceJoinSql()?