Index-setting is not work

Elastic Stack Elasticsearch
3

Hi, Thanks for your suggest.
I find the reason，the indices body setting only effective when using create-index。If I set operation-type：bulk，the setting is not working. So I rebuild my challenge like this:

{
  "name": "index-test-challenge",
  "default": true,
  "description": "新增索引测试",
  "schedule": [
    {
      "operation": {
        "operation-type": "create-index",
        "index": "test-index",
        "settings": {{index_settings | default({}) | tojson}}
      }
    },
    {
      "operation": {
        "operation-type": "bulk",
        "bulk-size": 5000,
        "indices": ["test-index"],
        "corpora": ["test_docs"]
      }
    }
  ]
}

I think it's a issue.