two should contains inner_hit

my es version：6.4

my question： My nested query is in the first should, but looking at the document that inner_hit hits the second should, what should I do to make nested only hit the first should, the inner_hit I expect is empty, in a query

my index

PUT my_index
{
  "mappings": {
    "_doc": {
      "properties": {
        "user": {
          "type": "nested" 
        }
      }
    }
  }
}

my mapping

{
  "mapping": {
    "_doc": {
      "properties": {
        "group": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "user": {
          "type": "nested",
          "properties": {
            "first": {
              "type": "text",
              "fields": {
                "keyword": {
                  "type": "keyword",
                  "ignore_above": 256
                }
              }
            },
            "last": {
              "type": "text",
              "fields": {
                "keyword": {
                  "type": "keyword",
                  "ignore_above": 256
                }
              }
            }
          }
        }
      }
    }
  }
}

my data

PUT my_index/_doc/1
{
  "group" : "fans",
  "user" : [
    {
      "first" : "John",
      "last" :  "Smith"
    },
    {
      "first" : "Alice",
      "last" :  "White"
    }
  ]

my dsl

{
    "query":{
        "bool":{
            "should":[
                {
                    "bool":{
                        "must":[
                            {
                                "nested":{
                                    "query":{
                                        "term":{
                                            "user.first.keyword":{
                                                "value":"John",
                                                "boost":1
                                            }
                                        }
                                    },
                                    "path":"user",
                                    "ignore_unmapped":false,
                                    "score_mode":"none",
                                    "boost":1,
                                    "inner_hits":{
                                        "ignore_unmapped":false,
                                        "from":0,
                                        "size":3,
                                        "version":false,
                                        "explain":false,
                                        "track_scores":false
                                    }
                                }
                            }
                        ],
                        "must_not":[
                            {
                                "term":{
                                    "group.keyword":{
                                        "value":"fans",
                                        "boost":1
                                    }
                                }
                            }
                        ],
                        "adjust_pure_negative":true,
                        "boost":1
                    }
                },
                {
                    "term":{
                        "group.keyword":{
                            "value":"fans",
                            "boost":1
                        }
                    }
                }
            ],
            "adjust_pure_negative":true,
            "boost":1
        }
    }
}

actual results

{
  "took": 6,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 1,
    "max_score": 0.2876821,
    "hits": [
      {
        "_index": "my_index",
        "_type": "_doc",
        "_id": "1",
        "_score": 0.2876821,
        "_source": {
          "group": "fans",
          "user": [
            {
              "first": "John",
              "last": "Smith"
            },
            {
              "first": "Alice",
              "last": "White"
            }
          ]
        },
        "inner_hits": {
          "user": {
            "hits": {
              "total": 1,
              "max_score": 0.6931472,
              "hits": [
                {
                  "_index": "my_index",
                  "_type": "_doc",
                  "_id": "1",
                  "_nested": {
                    "field": "user",
                    "offset": 0
                  },
                  "_score": 0.6931472,
                  "_source": {
                    "first": "John",
                    "last": "Smith"
                  }
                }
              ]
            }
          }
        }
      }
    ]
  }
}
enter code here

My desired result is that inner_hit is empty, since the nested contained by the first should doesn't hit any documents