// Printing recursive objects.
let root := {'key': 'value', 'key2': 'value2'}
let leaf := {'key': 'value', 'key2': 'value2'}
for (let i := 0; i < 30; i := i + 1) {
  root[f'key_{i}'] := {
    'something': leaf,
  }
}
// Should NOT replace all leaves with nulls.
print(root)
print(jsonParse(jsonStringify(root)))