guardian/frontend — pull request #7284 by mattosborn (2014-11-25 15:03:34+00:00)
Title: update logic for share button deduping

roughly factor main media into the social button deduping logic

should fix this:
![image](https://cloud.githubusercontent.com/assets/960919/5185083/328f5ca0-74b4-11e4-8837-58fa98f8e4f8.png)