[OpenBD] Argument Not required and Not passed showing up as [undefined] in dump

[BCulpepper]

<cfcomponent>
    <cffunction name="foo" access="public" output="false"
returntype="void">
        <cfargument name="bar" type="string" required="false" />

        <cfdump var="#arguments#" />
        <cfabort />
    </cffunction>
</cfcomponent>

Called from:
<cfset x = CreateObject("ArgTest") />
<cfset x.foo() />

Will output an empty struct as it should.

However, When called from another method the struct is not empty.

<cfcomponent>
   <cffunction name="foo" access="public" output="false"
returntype="void">
       <cfargument name="bar" type="string" required="false" />
       <cfscript>
           foo2();
       </cfscript>
   </cffunction>

   <cffunction name="foo2" access="public" output="false"
returntype="void">
       <cfargument name="bar2" type="string" required="false" />

       <cfdump var="#arguments#" />
       <cfabort />
   </cffunction>
</cfcomponent>

Called from:
<cfset x = CreateObject("ArgTest") />
<cfset x.foo() />

Will output bar2 [undefined]

This has been tested in 1.4 as well as 1.5 nightly build.

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