change listener on ListView is called one extra time

The attached app displays a ListView: select top item "THIS" then the next item "IS".
I'm expecting the change listener is called once per selection (which was the case up to at least JDK 8 b101) but with JDK 8 b105 the listener is called two times when selecting the second row.

* What one get with JDK 8 b105

Click on "THIS" triggers
changed called - t = null - t1 = THIS

Click on "IS" triggers
changed called - t = THIS - t1 = null
changed called - t = null - t1 = IS

* What one get with JDK 8 b101

Click on "THIS" triggers
changed called - t = null - t1 = THIS

Click on "IS" triggers
changed called - t = THIS - t1 = IS