Fix segfault this-capture GeoJsonSource which may be deleted (#3536)

Co-authored-by: Tim Sylvester <tim@wetdogweather.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

platform/android/MapLibreAndroidTestApp/src/androidTest/java/org/maplibre/android/testapp/style/GeoJsonSourceTests.java

@@ -1,5 +1,6 @@
 package org.maplibre.android.testapp.style;
 
+import org.maplibre.android.style.sources.CannotAddSourceException;
 import org.maplibre.geojson.Feature;
 import org.maplibre.geojson.FeatureCollection;
 import org.maplibre.geojson.Point;
@@ -155,6 +156,29 @@ public class GeoJsonSourceTests extends EspressoTest {
     });
   }
 
+  @Test
+  public void testDuplicateSourceDuringAsyncSetGeoJson() {
+    // regression test for segfault when setting GeoJSON contents
+    // for a source that has been deleted
+    // https://github.com/maplibre/maplibre-native/issues/3493
+    validateTestSetup();
+    MapLibreMapAction.invoke(maplibreMap, (uiController, maplibreMap) -> {
+      String geoJsonString = "{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[0,0]}}";
+      for (int i = 0; i < 1000; i++) {
+        // Create a GeoJSON source with the same ID each iteration
+        GeoJsonSource source = new GeoJsonSource("source");
+        try {
+          maplibreMap.getStyle().addSource(source);
+        } catch (CannotAddSourceException ex) {
+          // ignore, this is expected
+        }
+
+        // Schedule an async update via setGeoJson(String)
+        source.setGeoJson(geoJsonString);
+      }
+    });
+  }
+
   public abstract class BaseViewAction implements ViewAction {
 
     @Override