THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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The property column from wicket-extensions has some methods renamed to better reflect their meaning.
#onSelectionChanged() use generic type as argument
RadioGroup and RadioChoice use their generic type for the argument of #onSelectionChanged() now.
Behavior changes
org.apache.wicket.request.Url#getQueryString WICKET-4664
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