Google Double URL In A Single Snippet

I've never seen this before, Google showing a double URL in a single search result snippet. In fact, I was able to reproduce this by turning off safe search and trying the query multiple ways.

Here is a screen shot of the result for [cocaine mitch] showing the double URL. Sometimes it shows a single URL and sometimes it shows this double URL:

This was spotted by @dudesweet on Twitter.

Have you ever seen this before?

Pretty interesting.

Forum discussion at Twitter.