'Mark Site Read' Changed??

[RocketStang]

I seem to remember back in IPB 4.5.x, when you clicked MARK SITE READ after browsing a search results list of topics, the screen would flash and all the topics listed would be cleared.  But after 4.6 upgrade, the topics are no longer cleared from the screen until you click browser refresh.  The feature does work...if you click UNREAD CONTENT, then no new results will pop up.  Just wondering if anyone else noticed this?  Hopefully it is a bug and could be restored to the way it used to be!