Github user svenmeier commented on the issue:
https://github.com/apache/wicket/pull/292
Ah, I didn't notice your cleanup behavior. That's an improvement to the old
solution already +1.
I just think that a dynamic lookup with an overriden #getCheckBoxes() would
be more flexible. Why not do both: Add the cleanup all checkboxes passed in the
constructor *and* let users override the lookup method if they want/need to.---
