Github user svenmeier commented on the issue:
https://github.com/apache/wicket/pull/342
>Components like FeddbackPanel can not work properly anymore.
That's not the case - feedbackPanels are explicitly not prepared for render.
I'm not sure using a new page instance is right either: the developer might
want to keep some state during a single request. Your commit results int all
feedback messages getting lost, doesn't it?---
