Updating forms model causes panel to lose model

Hey

I have a form on a page.

In that form a have a panel.

When i change the forms model with setModel( A Compound PropertyModel)

The panel loose the model due to MarkupContainer line 780.

This is a problem because i want to get the model some time later in the
panel, but because its a compoundpropertymodel in the form, i get the
following error.

Caused by: java.lang.RuntimeException: An error occurred while getting the
model object for Component: [AccountInfoPanel [Component id =
accountInfoPanel, page =
com.trifork.pengeplan.web.app.secure.transactions.AddTransactionPage, path
= 2:entityEdit:accountInfoPanel.AccountInfoPanel, isVisible = true,
isVersioned = true], children = [Component id = ownedAccountType]
[Component id = depositoryType] [RepeatingView [Component id =
accountInfoView]]]
at org.apache.wicket.Component.getDefaultModelObject(Component.java:1673)
~[wicket-core-1.5.6.jar:1.5.6]
at
org.apache.wicket.markup.html.panel.GenericPanel.getModelObject(GenericPanel.java:59)
~[wicket-core-1.5.6.jar:1.5.6]
at
com.trifork.pengeplan.web.app.secure.transactions.AddTransactionsPageComponents.panel.AccountInfoPanel.onConfigure(AccountInfoPanel.java:151)
~[classes/:na]
at org.apache.wicket.Component.configure(Component.java:1093)
~[wicket-core-1.5.6.jar:1.5.6]
at org.apache.wicket.Component.internalBeforeRender(Component.java:984)
~[wicket-core-1.5.6.jar:1.5.6]
at org.apache.wicket.Component.beforeRender(Component.java:1027)
~[wicket-core-1.5.6.jar:1.5.6]
at
org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1743)
~[wicket-core-1.5.6.jar:1.5.6]
... 49 common frames omitted
Caused by: org.apache.wicket.WicketRuntimeException: No get method defined
for class: class com.trifork.pengeplan.domain.CompleteAccountTransaction
expression: accountInfoPanel
at
org.apache.wicket.util.lang.PropertyResolver.getGetAndSetter(PropertyResolver.java:499)
~[wicket-core-1.5.6.jar:1.5.6]
at
org.apache.wicket.util.lang.PropertyResolver.getObjectAndGetSetter(PropertyResolver.java:341)
~[wicket-core-1.5.6.jar:1.5.6]
at
org.apache.wicket.util.lang.PropertyResolver.getObjectAndGetSetter(PropertyResolver.java:244)
~[wicket-core-1.5.6.jar:1.5.6]
at
org.apache.wicket.util.lang.PropertyResolver.getValue(PropertyResolver.java:97)
~[wicket-core-1.5.6.jar:1.5.6]
at
org.apache.wicket.model.AbstractPropertyModel.getObject(AbstractPropertyModel.java:134)
~[wicket-core-1.5.6.jar:1.5.6]
at org.apache.wicket.Component.getDefaultModelObject(Component.java:1668)
~[wicket-core-1.5.6.jar:1.5.6]
... 55 common frames omitted

Could someone please help me?

Med venlig hilsen / Best regards

Tommy Sadiq Hinrichsen