/statements endpoint includes "voiding statements"

[Vjedi729]

When a statement is voided, the xAPI LRS spec states that "A reporting system SHOULD NOT show voided or voiding Statements by default." xAPI-Spec.md at 1.0.2.

While running simple manual tests, I found that this LRS behavior does not match this. Voided statements are excluded, but voiding statements are not.

This is the response I saw from the /statements endpoint, after submitting two statements and then voiding one.

{
    "statements": [
        {
            "actor": {
                "objectType": "Agent",
                "name": "Example Admin",
                "mbox": "mailto:admin@example.com"
            },
            "verb": {
                "id": "http://adlnet.gov/expapi/verbs/voided",
                "display": {
                    "en-US": "voided"
                }
            },
            "object": {
                "objectType": "StatementRef",
                "id": "41f03ec4-0ea6-4f92-b1ca-bdf48d0dcc1f"
            },
            "authority": {
                "objectType": "Agent",
                "account": {
                    "homePage": "http://XXXXXXX",
                    "name": "XXXXX@XXXXXXXXX.XXX"
                }
            },
            "stored": "2022-05-20T13:46:45+00:00",
            "timestamp": "2022-05-20T13:46:45+00:00",
            "id": "e598fbcd-9c7e-4cff-bfa3-9b50ad93aa94"
        },
        {
            "actor": {
                "mbox": "mailto:test.user@example.com",
                "name": "Test User",
                "objectType": "Agent"
            },
            "verb": {
                "id": "http://adlnet.gov/expapi/verbs/launched",
                "display": {
                    "en-US": "launched"
                }
            },
            "object": {
                "objectType": "Activity",
                "id": "http://XXXX,XXXXX...",
                "definition": {
                    "name": {
                        "en-US": "XXXXXXXXXXXXXXXX"
                    },
                    "description": {
                        "en-US": "XXXXXXXXXXXXXX"
                    },
                    "interactionType": "performance"
                }
            },
            "authority": {
                "objectType": "Agent",
                "account": {
                    "homePage": "http://XXXXXXX",
                    "name": "XXXXX@XXXXXXXXX.XXX"
                }
            },
            "stored": "2022-05-19T20:52:14+00:00",
            "timestamp": "2022-05-19T20:52:14+00:00",
            "id": "82a261c6-318f-4675-85b3-c6859ca06c6f"
        }
    ],
    "more": "",
    "totalCount": 2
}