PointsTo resolved incorrectly if host parameter used

[pawel-kow]

Template to reproduce

{
    "providerId": "exampleservice.domainconnect.org",
    "providerName": "Example Domain Connect Service",
    "serviceId": "bug-pointsTo-resolve-host",
    "serviceName": "RR type Test Suite",
    "version": 1,
    "logoUrl": "https://www.domainconnect.org/wp-content/uploads/2018/11/DomainConnectSquareBlack.png",
    "hostRequired": true,
    "records": [
        {
            "type": "A",
            "host": "foo",
            "pointsTo": "1.1.1.1",
            "ttl": "1800"
        },
        {
            "type": "CNAME",
            "host": "@",
            "pointsTo": "foo",
            "ttl": "1800"
        }
    ]
}

Use with host = buzz

Current behavior: pointsTo of CNAME expands to "foo".
Expected: pointsTo of CNAME will expand to "foo.buzz".