I've encountered a bug using ListModelList. I've created a test case (a zul file and a ViewModel).

When I try to add an element to a ListModelList through a command, it works the first time, but then I get this error: "Adding causes a smaller list?"

Additionnal information:

• If I change the ListModelList and use a List, the exception doesn't occur.
• If I change the zul to use tabs, the exception doesn't occur either:

  <tabbox model="@load(vm.beans)">
  	<template name="model:tab">
  		<tab label="@load(each.label)" />
  	</template>
  	<template name="model:tabpanel">
  		<tabpanel>
  			<label value="@load(each.label)" />
  		</tabpanel>
  	</template>
  </tabbox>