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lineSplit doesn't split correctly

See original GitHub issue

LineSplit is a great feature but it doesn’t work as expected. I use a simple Polygon (triangle) as a splitter to split a simple four-point LineString. This should result in three LineStrings but only two are produced:

var line = {
    type: "Feature",
    geometry: {
        type: "LineString",
        coordinates: [[13.8716,56.2783],[13.8715,56.2785],[13.8743,56.2794],[13.8796,56.2746]]
    }
};
var splitter = {
    type: "Feature",
    geometry: {
        type: "Polygon",
        coordinates: [[[13.8726,56.2786],[13.8716,56.2786],[13.8713,56.2784],[13.8726,56.2786]]]
    }
};
var split = turf.lineSplit(line, splitter);

Returns this collection:

{
    type: "FeatureCollection",
    features: [{
        type: "Feature",
        geometry: {
            type: "LineString",
            coordinates: [[13.8716, 56.2783], [13.871532142857145, 56.27843571428571]]
        }
    },
    {
        type: "Feature",
        geometry: {
            type: "LineString",
            coordinates: [[13.871532142857145, 56.27843571428571], [13.8715, 56.2785], [13.8743, 56.2794], [13.8796, 56.2746]]
        }
    }]
}

Instead of this:

{
    type: "FeatureCollection",
    features: [{
        type: "Feature",
        geometry: {
            type: "LineString",
            coordinates: [[13.8716, 56.2783], [13.871532142857145, 56.27843571428571]]
        }
    },
    {
        type: "Feature",
        geometry: {
            type: "LineString",
            coordinates: [[13.871532142857145, 56.27843571428571], [13.8715, 56.2785], [13.871811111111098, 56.2786]]
        }
    },
    {
        type: "Feature",
        geometry: {
            type: "LineString",
            coordinates: [[13.871811111111098, 56.2786], [13.8743, 56.2794], [13.8796, 56.2746]]
        }
    }]
}

This is my first post ever on GitHub, so please be kind if I’m doing something wrong. Have searched earlier issues and haven’t seen this bug report.