qmllint does not know the type of "this"

import QtQuick

Item {
    id: object
    property string test: "test";
    function testfn() {
        console.log(this.test)
        console.log(object.test)
    }
}

$ qmllint test/qmllsthis.qml -I [...]
Warning: test/qmllsthis.qml:9:20: Member "test" not found on type "QObject" [missing-property]
        console.log(this.test)
                         ^^^^