The wicket-1.4.6 release contains a fix for WICKET-2312, which is a great thing. But apparently it breaks Bookmarkable link url in situation when it is updated by ajax. I'm not sure if this description is enough for fast reproduction, but I will try to add a quickstart asap and will open a JIRA issue.
This issue is pretty critical. I cannot migrate the application to wicket-1.4.6 because of it. Thank you!