learningequality/ka-lite — pull request #1709 by ruimalheiro (2014-03-10 23:40:54+00:00)
Title: Fixed duplicate results in search.

This fixes issue #1691

- Checking if the dict already contains the node.

![image](https://f.cloud.github.com/assets/1102381/2380559/52ff6fc6-a8ad-11e3-93a1-acb88d332964.png)