[BUG] crash after changing GeoJsonSource

[nijs9]

Platforms

iOS

Version of flutter maplibre_gl

0.20

Bug Description

When we modify a geoJsonSource with mapcontroller.setGeoJsonSource, it occasionally (though not often) causes the app to crash completely (on an iPhone 13 Pro running iOS 18). In Firebase, we see the following crash:

Crashed: com.apple.main-thread
0 AGXMetalG14 0x374974 + 64
1 MapLibre 0x401170 mbgl::mtl::BufferResource::bindVertex(NS::SharedPtrMTL::RenderCommandEncoder const&, unsigned long, unsigned long, unsigned long) const + 52
2 MapLibre 0x406744 mbgl::mtl::Drawable::draw(mbgl::PaintParameters&) const + 368
3 MapLibre 0x42b6e8 mbgl::mtl::TileLayerGroup::render(mbgl::RenderOrchestrator&, mbgl::PaintParameters&) + 720
4 MapLibre 0x22c954 mbgl::Renderer::Impl::render(mbgl::RenderTree const&, std::__1::shared_ptrmbgl::UpdateParameters const&) + 3104
5 MapLibre 0x22ad60 mbgl::Renderer::render(std::__1::shared_ptrmbgl::UpdateParameters const&) + 72
6 MapLibre 0xa200c MLNUnitBezierForMediaTimingFunction(CAMediaTimingFunction*) + 15052
7 MapLibre 0xa1f78 MLNUnitBezierForMediaTimingFunction(CAMediaTimingFunction*) + 14904
8 MapLibre 0xc2d24 MLNMapViewImpl::render() + 28
9 MetalKit 0x7570 -[MTKView draw] + 160
10 QuartzCore 0x782fc + 416
11 QuartzCore 0xcf29c + 472
12 QuartzCore 0x4e0d4 + 648
13 QuartzCore 0x91398 + 88
14 UIKitCore 0xaeb78 + 52
15 UIKitCore 0xac174 + 332
16 UIKitCore 0xabfe8 + 84
17 UIKitCore 0xabc38 + 172
18 UIKitCore 0xacbac + 92
19 CoreFoundation 0x57088 + 28
20 CoreFoundation 0x5701c + 176
21 CoreFoundation 0x54b08 + 244
22 CoreFoundation 0x53d04 + 840
23 CoreFoundation 0x535b8 CFRunLoopRunSpecific + 572
24 GraphicsServices 0x11c4 GSEventRunModal + 164
25 UIKitCore 0x3de5f0 + 816
26 UIKitCore 0x48d10c UIApplicationMain + 340
27 UIKitCore 0x7b9e50 + 10212
28 Runner 0x8610 main + 120 (AppDelegate.swift:120)
29 ??? 0x1ab4b3d34 (Missing)

Steps to Reproduce

1. Change existing GeoJsonSource with mapcontroller.setGeoJsonSource.
2. Very rarely app is crashing.

Expected Results

Map is rendered with updated geojson data.

Actual Results

App is crashing very rarely.

Code Sample

mapcontroller.setGeoJsonSource(
‘myroute’,
routedata
);