Inheritance not working with cfinclude - coldfusion

Question

I am trying to resolve an issue on CFWheels, where I am have trouble extending my parent Application.cfc which also extends another Application.cfc. In order to understand the problem better and really single out what's going wrong, I have created a directory structure as follows:
/mainapp/index.cfm
-------------------------------------------------
<cfoutput>
<cfdump var="#session#">
</cfoutput>
/mainapp/Application.cfc
-------------------------------------------------
<cfscript>
component
{
this.name = "Main App";
this.applicationTimeout = createTimeSpan(0, 1, 0, 0);
this.sessionManagement = true;
this.sessionTimeout = createTimeSpan(0, 0, 30, 0);
public function intMainApp(name, value){
session[name] = value;
}
public boolean function OnApplicationStart(){
//Handle OnApplicationStart Callback
return true;
}
public void function OnApplicationEnd(struct ApplicationScope=structNew()){
//Handle OnApplicationEnd Callback
}
public void function OnRequest(required string TargetPage){
//Handle OnRequest Callback
}
public boolean function OnRequestStart(required string TargetPage){
//Handle OnRequestStart Callback
include arguments.TargetPage;
intMainApp("mainappv1", "something session");
return true;
}
public void function OnSessionStart(){
//Handle OnSessionStart Callback
}
public void function OnSessionEnd(required struct SessionScope, struct ApplicationScope=structNew()){
//Handle OnSessionEnd Callback
}
}
</cfscript>
/mainapp/submainapp/index.cfm
-------------------------------------------------
<cfoutput>
<cfdump var="#session#">
</cfoutput>
/mainapp/submainapp/Application.cfc
-------------------------------------------------
<cfscript>
component extends="mainapp.Application"
{
this.name = "Main App";
this.applicationTimeout = createTimeSpan(0, 1, 0, 0);
this.sessionManagement = true;
this.sessionTimeout = createTimeSpan(0, 0, 30, 0);
public function intSubMainApp(name, value){
session[name] = value;
}
public boolean function OnApplicationStart(){
//Handle OnApplicationStart Callback
return true;
}
public void function OnApplicationEnd(struct ApplicationScope=structNew()){
//Handle OnApplicationEnd Callback
}
public void function OnRequest(required string TargetPage){
//Handle OnRequest Callback
}
public boolean function OnRequestStart(required string TargetPage){
//Handle OnRequestStart Callback
include arguments.TargetPage;
intSubMainApp("submainapp2", "var var 2");
intMainApp("v3", "var 3");
return true;
}
public void function OnSessionStart(){
//Handle OnSessionStart Callback
}
public void function OnSessionEnd(required struct SessionScope, struct ApplicationScope=structNew()){
//Handle OnSessionEnd Callback
}
}
</cfscript>
/mainapp/submainapp/childapp/index.cfm
-------------------------------------------------
<cfoutput>
<p>Testing Child App</p>
</cfoutput>
/mainapp/submainapp/childapp/Application.cfc
-------------------------------------------------
<cfcomponent output="false">
<cfinclude template="../Application.cfc">
</cfcomponent>
If I execute the childapp/index.cfm I get the error.
Variable INTMAINAPP is undefined.
This problem is similar to the issue that I facing with cfwheels when trying to extend my parent Application.cfc. Why is it that InitMainApp method not being included in submainapp/Application.cfc when it used via cfinclude tag and Is there a workaround or fix for this problem.
Just as a clarification, childapp/Application.cfc is trying to include submainapp/Application.cfc
Moreover there is a issue created on this in the cfwheels community forums.
https://groups.google.com/forum/#!topic/cfwheels/1eMGLGSrbBY