How can we stop recursion in Hierarchy tree?

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a!localVariables(
  local!path:{
    id:"1",
    name:"Method",
    type: "331324",
    numberOfChildren: 3,
    isDrillable: true,
    image:cons!EA_EMP
  },
  local!name:{
    {
      id:"1",
      name:"Section 1",
      subnodes:{
        {title:"subsection 1.1",
        id:"100",
        type:"264447",
        numberOfChildren:0,
        isDrillable:true,
        image:cons!EA_FEMALEEMP},
        {
          title:"subsection 1.2",
          id:"200",
          type:"264447",
          numberOfChildren:0,
          isDrillable:true,
          image:cons!EA_MALEEMP1
        }
      },
      type:"264447",
      numberOfChildren:1,
      isDrillable:true,
      image:cons!PT_SUPERVISOR_1
    },
    {
      {
        id:"2",
        name:"Section 2",
        subnodes:{
          {title:"subsection 2.1",
          id:100,
          type:"264447",
          numberOfChildren:1,
          isDrillable:true,
          image:cons!PT_SUPERVISOR_1},
          {
            title:"subsection 2.2",
            id:200,
            type:"264447",
            numberOfChildren:0,
            isDrillable:true,
            image:cons!EA_EMP
          }
        },
        type:"264447",
        numberOfChildren:2,
        isDrillable:true,
        image:cons!EA_EMPMALE
      },
      {
        id:"3",
        name:"Section 3",
        subnodes:{
          {title:"subsection 3.1",
          id:100,
          type:"264447",
          numberOfChildren:0,
          isDrillable:true,
          image:cons!EA_FEMALEEMP1
          },
          {
            title:"subsection 3.2",
            id:200,
            type:"264447",
            numberOfChildren:0,
            isDrillable:true,
            image:cons!EA_FEMALEEMP
          }
        },
        type:"264447",
        numberOfChildren:1,
        isDrillable:false(),
        image:cons!EA_MALEEMP1
      },
    }
  },
  a!hierarchyBrowserFieldTree(
    pathValue: local!path,
    pathSaveInto: local!path,
    nextLevelValues: a!forEach(
      
      items: enumerate(fv!nodeValue.numberOfChildren),
      expression: a!localVariables(
        local!numberOfChilren: index(local!name[fv!index],"numberOfChildren",0),
        local!isDrillable:index(local!name[fv!index],"isDrillable",false),
        {
          id: local!name[fv!index].id,
          name: local!name[fv!index].name,
          subnodes:local!name[fv!index].subnodes,
          title:local!name.subnodes.title,
          type: local!name[fv!index].type,
          image:local!name[fv!index].image,
          numberOfChildren: local!numberOfChilren,
          isDrillable: local!isDrillable
        }
      )
    ),
    nodeConfigs: a!hierarchyBrowserFieldTreeNode(
      id: fv!nodeValue.id,
      label: fv!nodeValue.name,
      description: {fv!nodeValue.subnodes.title},
      image: a!documentImage(
        document: fv!nodeValue.image
      ),
      isDrillable: true(),
      nextLevelCount: fv!nodeValue.numberOfChildren,
      showWhen: true()
    )
  )
)

I'm new to appian, can anyone clarify my doubt related to HierarchicalBrowserFieldTree

1.How can i stop recursion as I need subsections under sections but the same section fields are looping continuously

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