[Bug] Label uploads give incorrect labels in archive upload modal

[tthvo]

Current Behavior

When uploading a JSON containing labels, the upload succeeds but the labels are parsed incorrectly.

Expected Behavior

The labels should be parsed and rendered correctly.

Steps To Reproduce

Use the JSON below (downloaded from the Recording view) to upload labels in the Archive Upload Modal.

{
  "labels": [
    {
      "key": "connectUrl",
      "value": "service:jmx:rmi:///jndi/rmi://localhost:0/jmxrmi"
    },
    {
      "key": "template.type",
      "value": "TARGET"
    },
    {
      "key": "jvmId",
      "value": "uiHfwHuHaz-0gyN5t3R70FfABvAlHRu3ak1YEDfDEJc="
    },
    {
      "key": "template.name",
      "value": "Continuous"
    }
  ]
}

Environment

- OS: Fedora
- Environment: Smoketest with `docker-compose`
- Version: `4.0.0-dev` (likely affects `3.0.0`)

Anything else?

[tthvo]

Confirmed this affected 3.0.0 :((