Moodle: group validation missing when enrolling user to course

{
                    "versions": [
                        {
                            "status": "affected",
                            "version": "5.2.0",
                            "lessThan": "5.2.2",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "5.1.0",
                            "lessThan": "5.1.6",
                            "versionType": "semver"
                        }
                    ],
                    "packageName": "moodle",
                    "collectionURL": "https://git.moodle.org",
                    "defaultStatus": "unaffected"
                }