# create a datastream

PUT _index_template/test-logs-data-stream
{
  "index_patterns": [ "test-logs-*" ],
  "data_stream": { },
  "template": {
    "settings" : {
      "index": {
        "refresh_interval": "1s"
      },
      "number_of_shards": 1,
      "number_of_replicas": 0
    }
  }
}

PUT _data_stream/test-logs-1

# observe that there is one index, and that it's the one for the datastream

GET _cat/indices?s=index

# as expected, these each return the field caps for the _id field for the one index

GET test-logs*/_field_caps?fields=_id

GET .ds-test-logs*/_field_caps?fields=_id

# as expected, these expressions return 0 results

# expect 0 results, get 0 results, good
GET test-logs*,-test-logs*/_field_caps?fields=_id

# expect 0 results, get 0 results, also good
GET .ds-test-logs*,-.ds-test-logs*/_field_caps?fields=_id

# but here's the bug, these two don't return 0 results

# expect 0 results, get 1 results, bad
GET .ds-test-logs*,-test-logs*/_field_caps?fields=_id

# expect 0 results, get 1 results, also bad
GET test-logs*,-.ds-test-logs*/_field_caps?fields=_id