Escape hatches seem to not be working as expected

[srfrnk]

Description of the bug:

The following code:

    var test = new KubeNamespace(this, "test", {
      metadata: {
        name: "test"
      }
    })

    test.addJsonPatch(JsonPatch.add("/spec", { 'test': 1 }))

Generates this:

apiVersion: v1
kind: Namespace
metadata:
  name: test
spec: {}

While AFAIK it should generate:

apiVersion: v1
kind: Namespace
metadata:
  name: test
spec:
  test: 1

Reproduction Steps:

• insert code section into a new Cdk8s TS project
• run npm run synth

Environment:

• Ubuntu 23
• Node v18.20.0
• Cdk8s 2.198.65

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This is :bug: Bug Report