TYPO3 Core

When using the SpacelessViewHelper, I get an error everytime I clear all caches and reload the frontend:

#1: PHP Catchable Fatal Error: Argument 2 passed to TYPO3\CMS\Fluid\ViewHelpers\SpacelessViewHelper::renderStatic() must be an instance of Closure, null given, called in typo3/sysext/fluid/Classes/ViewHelpers/SpacelessViewHelper.php on line 50 and defined in typo3/sysext/fluid/Classes/ViewHelpers/SpacelessViewHelper.php line 58

I think the render-function needs to be changed from

public function render()
{
    return static::renderStatic($this->arguments, $this->renderChildrenClosure, $this->renderingContext);
}

to

public function render()
{
    return static::renderStatic($this->arguments, $this->buildRenderChildrenClosure(), $this->renderingContext);
}