Form processing throws NPE if button.onsubmit() moves the button or its parents
out of the component hierarchy
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Key: WICKET-1430
URL: https://issues.apache.org/jira/browse/WICKET-1430
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.3.2
Reporter: Igor Vaynberg
Assignee: Igor Vaynberg
Fix For: 1.3.3
if button.onsubmit() takes the button out of hierarchy form processing breaks.
the reason is that after onsubmit() of the button is ran wicket will call
button.getform() which returns null because the button is out of the component
hierarchy
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