Steps to Reproduce

run fiddle
http://zkfiddle.org/sample/br92rk/3-view-model-same-name-bleeding-in-include

There are 2 pages:
index (using outerVm)
include (using innerVm)

in the include page, the innerVm is declared with the name (vm) and has a getStringValue method which can be resolved to vm.stringValue in databinding

<label value="@load(vm.stringValue)" />

on ZK 8.5.1 and later, If the parent page hold a different VM object with the same name (vm), the binding will be resolved on the outerVM object instead of the direct parent VM of the binding

This trigger an exception such as:

org.zkoss.zel.PropertyNotFoundException: Property 'stringValue' not found on type OuterVm
	at org.zkoss.zel.BeanELResolver$BeanProperties.get(BeanELResolver.java:426)
	at org.zkoss.zel.BeanELResolver$BeanProperties.access$300(BeanELResolver.java:376)
	at org.zkoss.zel.BeanELResolver.property(BeanELResolver.java:549)

Expected Result

The binding should be resolved on the closest parent vm, located in the same idspace / page

Debug Info

see comments

Root Cause

Workaround

change name of one of the vms to avoid same name in multiple VM bindings