qmlsc: crash on if + for

I had a piece of (bad) code in an application that was accidently missing the .length in the if check

const theList = PC.Experiment.get() // returns QStringList
if (theList) {
    for (let entry of theList) {
        console.log(entry)
    }
} else {
    // do whatever
}

which causes a crash of qmlsc. Adding the missing .length makes it happy again - a traditional style for(let i=0;...) loop is also working fine.