[Bug]PolygonLayer.getFillColor not invoked if data is an arbitrary "object that implements the iterable protocol"

Description

if PolygonLayer.data is an arbitrary "object that implements the iterable protocol", getFillColor is not necessarily invoked.

Flavors

• Script tag
• React
• Python/Jupyter notebook
• MapboxOverlay
• GoogleMapsOverlay
• CARTO
• ArcGIS

Expected Behavior

if PolygonLayer.data is an arbitrary object that implements the iterable protocol, getFillColor is invoked for all objects returned by the iterator.

Steps to Reproduce

Given:

function createLayer(name: string, iterableObject: Iterable<[number, number][]>): Layer {
  return new PolygonLayer<[number, number][]>({
    id: name,
    data: iterableObject,

    getPolygon: region => region,
    lineWidthMinPixels: 1,
    getFillColor: [0, 206, 209, 160],
  })
}

const rectangle: [number, number][] = [[-122.4, 37.7], [-122.4, 37.8], [-122.5, 37.8], [-122.5, 37.7], [-122.4, 37.7]]

const MY_REGIONS = new Map<string, [number, number][]>([['Rectangle', rectangle]])

For a layer created like this
createLayer('ok', Array.from(MY_REGIONS.values()))
getFillColor is invoked:

But not for a layer created like this:
createLayer('error', MY_REGIONS.values())

Environment

• Framework version: deck.gl@9.1.3
• Browser: Microsoft Edge Version 133.0.3065.82, Firefox 135.0.1, Opera 117.0.5408.39
• OS: Microsoft Windows [Version 10.0.19045.5371]

Logs

Empty

Start at the PolygonLayer data-iteration entry point and reproduce the difference between Array.from(MY_REGIONS.values()) and MY_REGIONS.values() using the provided example. The fix is complete when getFillColor is invoked for every polygon yielded by an arbitrary iterable, with regression coverage for both data forms.