Why is -> Fix the Module::renderNavigation() method

Can some one tell me, what is wrong here -> https://github.com/contao/core/commi...8118ca61e0ceeb with

PHP Code:

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while ($objSubpages->next()) 


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which Leo has changed to

PHP Code:

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foreach ($objSubpages as $objSubpage) 


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and wrote the title "Fix the Module::renderNavigation() method". thanks

Not sure, but you could ask in that commit directly.