Extended Indented Google Results Bug?

Philipp Lenssen spotted listings with more than one indented results for a search on get fuzzy. The first two results were from comics.com and the two other indented results were from Yahoo News. All these results were under the first listing, so we had three indented results showing under the top listing. Typically, there is only one indented result and no more. I cannot replicate this, it seems like a weird bug that may have been fixed. Philipp has a screen capture of it in action.

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A photograph of an advert for Google Voice on the London Underground, at the station Gloucester Road. The poster spells out the stop name as it's pronounced, "glos-tuh rode", and underneath reads, "Say it to get it. Google voice search for mobile".
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Google I O 2016 on Google
A graphic showing the old Google logo superimposed over a faint search results page.