CameraViewportState initial position is jumping

[vchrisb]

When initially loading a map that uses CameraViewportState, the map is briefly centering to a different center than configured.
This behavior is different to when using CameraOptions, where the onCameraChangeListener is also fired twice, but both with the same center.

MapWidget(
        key: ValueKey("mapWidget"),
        viewport: CameraViewportState(
            center: Point(coordinates: Position(-117.918976, 33.812092)),
            bearing: currentCity.bearing,
            pitch: 0,
            zoom: 18),
        onCameraChangeListener: (cameraChangedEventData) =>
            print(cameraChangedEventData.cameraState.center.toJson()),
      ),

Output for onCameraChangeListener:

{type: Point, bbox: null, coordinates: [-9.999999999999972, 29.999999999999964]}
{type: Point, bbox: null, coordinates: [-117.918976, 33.812092000000014]}

When configuring both, viewport and cameraOptions, it first centers to the position from cameraOptions and then to the position of cameraOptions. Maybe there is some unwanted default/calculation when using viewport alone?

MapWidget(
        key: ValueKey("mapWidget"),
        viewport: CameraViewportState(
            center: Point(coordinates: Point(coordinates: Position(-117.918976, 33.812092)),
            bearing: currentCity.bearing,
            pitch: 0,
            zoom: 18),
        cameraOptions: CameraOptions(
          center: Point(coordinates: Point(coordinates: Position(-100.918976, 33.812092))),
          zoom: 18,
        ),
        onCameraChangeListener: (cameraChangedEventData) =>
            print(cameraChangedEventData.cameraState.center.toJson()),
      ),

Output for onCameraChangeListener:

{type: Point, bbox: null, coordinates: [-100.918976, 33.812092000000035]}
{type: Point, bbox: null, coordinates: [-117.918976, 33.812092000000014]}