Polygon entity with callback property hierarchy crashes

[hpinkos]

This works in 1.59 but not in 1.60
Likely related to this PR: #7991

Marking this 'next release' since it is a regression, but I don't expect it to be fixed for the October release.

var viewer = new Cesium.Viewer('cesiumContainer');

viewer.entities.add({
    polygon : {
        hierarchy : new Cesium.CallbackProperty(function() { 
            return Cesium.Cartesian3.fromDegreesArray([-115.0, 37.0,
                                                        -115.0, 32.0,
                                                        -107.0, 33.0,
                                                        -102.0, 31.0,
                                                        -102.0, 35.0]);
        }, false)
    }
});

[hpinkos]

@shunter do you have time to look into this?

[shunter]

Returning a position array instead of a PolygonHierarchy was always undocumented behavior. You can fix your code snippet by calling the PolygonHierarchy constructor.

[OmarShehata]

Closing since this is intentional, and also it's a duplicate of #8135.