KML with duplicate placemark ID's doesn't render duplcates

[denverpierce]

Duplicate ID's on KML 's are eaten up by cesium (leaving only the last one parsed), but not by Google Earth.

Here is a minimally viable KML example:

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/Atom">
<Document>
    <name>test.kml</name>
    <Folder>
        <open>1</open>
        <Placemark id="pants">
            <name>Untitled Placemark</name>
            <Point>
                <coordinates>-100.3676476056248,35.68047362719558,0</coordinates>
            </Point>
        </Placemark>
        <Placemark id="pants">
            <name>Untitled Placemark</name>
            <Point>
                <coordinates>-99.88130689790214,35.74669558362526,0</coordinates>
            </Point>
        </Placemark>
    </Folder>
</Document>
</kml>

[hpinkos]

Thanks @denverpierce!