Reference Change Handlers in Lightning

my.app

<aura:application extends="force:slds">
    <c:referenceTest />
</aura:application>

referenceTest.cmp

<aura:component >
    <aura:attribute name="value1" type="Decimal" />
    <aura:attribute name="value2" type="Decimal" />
    <aura:attribute name="valueList" type="Decimal[]" />
    
    <aura:attribute name="referencedList" type="Decimal[]" />
    <aura:attribute name="listWithReferences" type="Decimal[]" />
    <aura:handler name="init" value="{!this}" action="{!c.initialize}" />
    
    <aura:handler name="change" value="{!v.value1}" action="{!c.printEventExpression}" />
    <aura:handler name="change" value="{!v.value2}" action="{!c.printEventExpression}" />
    <aura:handler name="change" value="{!v.valueList}" action="{!c.printEventExpression}" />
    <aura:handler name="change" value="{!v.referencedList}" action="{!c.printEventExpression}" />
    
    <aura:handler name="change" value="{!v.listWithReferences}" action="{!c.printEventExpression}" />
    
    <lightning:input aura:id="input" value="{!v.value1}" type="number" variant="label-hidden" label="Value" />
    <lightning:input aura:id="input" value="{!v.value2}" type="number" variant="label-hidden" label="Value" />
</aura:component>

referenceTestController.js

({
    initialize: function(cmp, evt, helper) {
        var values = [1,2];
        cmp.set("v.valueList", values);
        cmp.set("v.value1", cmp.getReference("v.valueList.0"));
        cmp.set("v.value2", cmp.getReference("v.valueList.1"));
        
        cmp.set("v.referencedList", cmp.getReference("v.valueList"));
        
        cmp.set("v.listWithReferences", [cmp.getReference("v.valueList.0"),
                                         cmp.getReference("v.valueList.1")]);
    },
    
    printEventExpression: function(cmp, evt, helper) {
        console.log(evt.getParam("expression"));
    },
})

Output:

v.valueList.1
v.referencedList
v.value2
v.value2

listWithReferences seems not to fire a change event.