Issue Summary

If you query the Search for issues using JQL enhanced search (GET) API and specify 3 fields in the query, only 2 will be returned

Steps to Reproduce

1. Step 1
   Paste a query like this on the browser: https://xxxxxxxxxx.atlassian.net/rest/api/2/search/jql?jql=project=TEST&fields=aggregatetimespent,customfield_123,customfield_456?startAt=0&maxResults=5000
2. Step 2
   Click search

Expected Results

Three fields should be returned like this:

    {
      "expand": "renderedFields,names,schema,operations,editmeta,changelog,versionedRepresentations,customfield_123.properties",
      "id": "72238",
      "self": "https://xxxxxxxxx.atlassian.net/rest/api/2/issue/72238",
      "key": "TEST-471",
      "fields": {
        "customfield_123": "Test value",
        "customfield_456": "Test value 2",
        "aggregatetimespent": 15000
      }
    }

Actual Results

• The * "aggregatetimespent": 15000* field is not returned in the results

      {
        "expand": "renderedFields,names,schema,operations,editmeta,changelog,versionedRepresentations,customfield_123.properties",
        "id": "72238",
        "self": "https://xxxxxxxxx.atlassian.net/rest/api/2/issue/72238",
        "key": "TEST-471",
        "fields": {
          "customfield_123": "Test value",
          "customfield_456": "Test value 2"
        
        }
      }
  

Workaround

Add a Null in your field array like this: https://xxxxxxxxxx.atlassian.net/rest/api/2/search/jql?jql=project=TEST&fields=aggregatetimespent,customfield_123,customfield_456,null?startAt=0&maxResults=5000