MahApps/MahApps.Metro — pull request #189 by rbev (2012-08-30 00:19:40+00:00)
Title: Add an AdornerDecorator to the tabitem template

Fixed the issue that was causing stackoverflows in previous pull request.

This change fixes validation overlays disappearing when changing tabs doesn't seem to be visible in sample application, however easily repeated when binding a tabcontrol to a caliburn micro conductor.
described here: http://caliburnmicro.codeplex.com/discussions/234086