Answered PackageBuilder generates wrong namespace value for assets path

...
$modx->loadClass('transport.modPackageBuilder', '', false, true);
$builder = new modPackageBuilder($modx);
$builder->directory = $sources['packages'];
$builder->createPackage(PKG_NAME_LOWER, PKG_VERSION, PKG_RELEASE);
$builder->registerNamespace(PKG_NAME_LOWER, false, true, '{core_path}components/'.PKG_NAME_LOWER.'/');
...

Name:  mypackage
Core path:  {core_path}components/mypackage/
Assets path:  /var/www/modx/wwwRoot/development/mypackage/assets/components/mypackage/

Assets path:  {assets_path}components/mypackage/

    public function registerNamespace($ns = 'core', $autoincludes = true, $packageNamespace = true, $path = '',$assetsPath = '') {
        if (!($ns instanceof modNamespace)) {
            $namespace = $this->modx->getObject('modNamespace', $ns);
            if (!$namespace) {
                $namespace = $this->modx->newObject('modNamespace');
                $namespace->set('name', $ns);
                $namespace->set('path',$path);
                $namespace->set('assets_path',$assetsPath);
            }
            if (!empty($path)) {
                $namespace->set('path',$path);
            }
            if (!empty($assetsPath)) {
                $namespace->set('assets_path',$assetsPath);
            }
        ...

$builder->registerNamespace(PKG_NAME_LOWER, false, true, '{core_path}components/'.PKG_NAME_LOWER.'/');