Repetition with $x... changes all trues to falses in 2nd and subsequent iterations

Created by: JanPokorny

This:

macro setToTrue
{
    rule { $name ... } =>
    {
        $($name: true) (,)...
    }
}

var x = {
    setToTrue x y z
}

...should produce this:

var x$279 = {
        x: true,
        y: true,
        z: true
    };

...but produces this:

var x$279 = {
        x: true,
        y: false,
        z: false
    };