Adding BoxGraphics to an Entity positioned at origin crashes

Sandcastle: [Link](https://sandcastle.cesium.com/#c=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)
Browser: Mozilla Firefox Version 83.0 (64-bit)
Operating System: Windows 10 Home 20H2

---

Adding a [`box`](https://cesium.com/docs/cesiumjs-ref-doc/Entity.html?classFilter=entit#box) to an entity positioned at [`Cartesian3.ZERO`](https://cesium.com/downloads/cesiumjs/releases/1.60/Build/Documentation/Cartesian3.html?classFilter=cartes#.ZERO) causes a crash.

```
const box = viewer.entities.add({
position: Cesium.Cartesian3.ZERO,
box: {
dimensions: new Cesium.Cartesian3(100.0, 100.0, 100.0),
material: Cesium.Color.BLUE.withAlpha(0.25)
}
});
```

Crash Log:

```
An error occurred while rendering. Rendering has stopped.
TypeError: cartographic is undefined
GeographicProjection.prototype.project@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:4082:13
updateBatchTableBoundingSpheres@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:112949:35
Primitive.prototype.update@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:113559:38
PrimitiveCollection.prototype.update@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:196435:21
PrimitiveCollection.prototype.update@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:196435:21
PrimitiveCollection.prototype.update@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:196435:21
updateAndRenderPrimitives@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:283075:23
executeCommandsInViewport@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:282850:32
Scene.prototype.updateAndExecuteCommands@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:282593:32
render@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:283469:11
tryAndCatchError@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:283488:24
Scene.prototype.render@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:283578:23
CesiumWidget.prototype.render@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:297724:19
render@https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:296979:20
```

This may be related to https://github.com/CesiumGS/cesium/issues/6365.

Reproduce the crash from the linked Sandcastle example with an entity at Cartesian3.ZERO. Start by tracing GeographicProjection.project and updateBatchTableBoundingSpheres from the reported stack, then verify that adding the box no longer stops rendering and that ordinary positioned entities still work.

Written by the indexing model from the issue text.