response resolver nesting foreach does not appear to work

I have a response resolver that looks like this snip

NOTE: This code runs inside a foreach
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#elseif( $entry.get("_source").entity.bundle == "he_transaction" )
#if( $velocityCount > 1 ) , #end

#set( $counties = [])
#if(!$entry.get("_source").field_locations.isEmpty())
#if(!$entry.get("_source").field_locations.counties.isEmpty())
#foreach($county in $entry.get("_source").field_locations.counties)
$util.qr( $counties.add( { "name": $county } ) )
#end
#end
#end

    $util.toJson({  
        "__typename": "Transaction",  
        "id": $entry.get("_source").entity.nid,  
        "title": $entry.get("_source").title\[0].value,  
        "status": $entry.get("_source").entity.status,  
        "uri": { "uri": $entry.get("_source").entity.uri },  
        "changed": $entry.get("_source").entity.changed.value,  
        "closeDate": $entry.get("_source").field_close_date\[0].value,  
        "companies": \[],  
        "buyers": \[],  
        "marketers": \[],  
        "locationBasin": $entry.get("_source").field_location_basin\[0].value,  
        "locationField": $entry.get("_source").field_location_field\[0].value,  
        "locations": \[{  
            "countryCode" : $entry.get("_source").field_locations\[0].country_code,  
            "administrativeArea" : $entry.get("_source").field_locations\[0].administrative_area,  
            "locality": $entry.get("_source").field_locations\[0].locality,  
            "counties": $counties  
        }],  
        "price": {  
            "currency_code": "USD",  
            "number": 0.0  
        },  
        "types": \[],  
        "roomOpening": $entry.get("_source").field_room_opening_date.value,  
        "relatedContents": \[]  
    })  

==============================================
but when I run the query, counties is empty when I can see the result from ES has values in it like this

==============================================
"field_locations": [
{
"country_code": "US",
"administrative_area": "OK",
"counties": [
"Garvin",
"Grady",
"Logan",
"Mayes",
"McClain",
"Oklahoma",
"Texas & Woodward Cos."
]
}
],
==============================================

Edited by: cjokinen on Jun 7, 2019 6:54 AM