4teamwork/opengever.core — pull request #427 by lukasgraf (2014-07-28 16:30:50+00:00)
Title: Hide duplicate title in mail preview tab

Hides the duplicate title in mail preview tab via CSS.

![duplicate_mail_title](https://cloud.githubusercontent.com/assets/405124/3723539/7404a9ae-1674-11e4-9e73-b974b66cd14a.png)

(Closes #423).