handleState when state.kind is null

[mohbahbah]

when a yaml file array property has item without a value (which will cause a validation error)
it was found that state.kind is reported as null causing the handleState method to skip this scalar type
in the example below filename doesn't have a value

rootpath:
   - pathtype: type1
     filename: 

which js-yaml will report its filename json data as null

{
  rootpath: [
    {
      pathtype: "type1",
      filename: null,
    },
  ],
}

a fix (workaround) can be applied by adding kind === null condition to the scalar types are primitives (non maps/arrays) condition

// scalar types are primitives (non maps/arrays)
      if (kind === "scalar" || kind === null) {
            ........
      }