BasemapGallery + SceneView rendering is broken

[dfeinzimer]

When a BasemapGallery is used with a SceneView and no items are provided to the initializer (BasemapGallery(geoModel: scene)), rendering is broken.

This appears to have started with #329. If clone() is removed from this line, rendering works correctly.

arcgis-maps-sdk-swift-toolkit/Sources/ArcGISToolkit/Components/BasemapGallery/BasemapGalleryViewModel.swift

Line 98 in 4849188

geoModel?.basemap = portal == nil ? item.basemap.clone() : item.basemap

Simulator.Screen.Recording.-.iPhone.16.-.2025-03-31.at.17.09.17.mp4

Update: Appears to have broken between 200.4.0 and 200.5.1

[mhdostal]

If it started with #329, it's been around for a while. Any fix will have to ensure that the original issue, #328, doesn't regress.

[mhdostal]

After looking at this, it seems like an issue with Basemap.clone(). That method is defined in the YAML and should work.

[dfeinzimer]

Ref Ping # 2027