Can't delete a node with upsert

Users Dgraph
,
7

By the way, the response is:

{
  "data": {
    "code": "Success",
    "message": "Done",
    "queries": {
      "q": [
        {
          "uid": "0x9c43"
        }
      ]
    },
    "uids": {}
  },
  "extensions": {
    "server_latency": {
      "parsing_ns": 12646,
      "processing_ns": 34508678,
      "encoding_ns": 17133,
      "assign_timestamp_ns": 428715,
      "total_ns": 35096636
    },
    "txn": {
      "start_ts": 101350,
      "commit_ts": 101351,
      "preds": [
        "1-dgraph.type"
      ]
    }
  }
}