[ios, macos] Update changelogs

Author: fabian-guerra

platform/darwin/src/MGLPolyline.mm

@@ -55,7 +55,17 @@ - (BOOL)isEqual:(id)other {
 
 - (CLLocationCoordinate2D)coordinate {
     mbgl::Polygon<double> polyline;
-    polyline.push_back([self lineString]);
+    
+    NSUInteger count = self.pointCount;
+    CLLocationCoordinate2D *coordinates = self.coordinates;
+    
+    mbgl::LinearRing<double> geometry;
+    geometry.reserve(self.pointCount);
+    for (NSUInteger i = 0; i < count; i++) {
+        geometry.push_back(mbgl::Point<double>(coordinates[i].longitude, coordinates[i].latitude));
+    }
+    
+    polyline.push_back(geometry);
 
     // pole of inaccessibility
     auto poi = mapbox::polylabel(polyline);

platform/ios/CHANGELOG.md

@@ -26,6 +26,7 @@ Mapbox welcomes participation and contributions from everyone. Please read [CONT
 ### Other changes
 
 * Xcode 8.0 or higher is now recommended for using this SDK. ([#8775](https://github.com/mapbox/mapbox-gl-native/pull/8775))
+* Fixed a crash when calling `MGLMultiPolygon.coordinate` [#8713](https://github.com/mapbox/mapbox-gl-native/pull/8713)
 * Updated MGLMapView’s logo view to display [the new Mapbox logo](https://www.mapbox.com/blog/new-mapbox-logo/). ([#8771](https://github.com/mapbox/mapbox-gl-native/pull/8771), [#8773](https://github.com/mapbox/mapbox-gl-native/pull/8773))
 * Fixed a crash or console spew when MGLMapView is initialized with a frame smaller than 64 points wide by 64 points tall. ([#8562](https://github.com/mapbox/mapbox-gl-native/pull/8562))
 * The error passed into `-[MGLMapViewDelegate mapViewDidFailLoadingMap:withError:]` now includes a more specific description and failure reason. ([#8418](https://github.com/mapbox/mapbox-gl-native/pull/8418))

platform/macos/CHANGELOG.md

@@ -14,6 +14,7 @@
 ### Other changes
 
 * Xcode 8.0 or higher is now recommended for using this SDK. ([#8775](https://github.com/mapbox/mapbox-gl-native/pull/8775))
+* Fixed a crash when calling `MGLMultiPolygon.coordinate` [#8713](https://github.com/mapbox/mapbox-gl-native/pull/8713)
 * Updated MGLMapView’s logo view to display [the new Mapbox logo](https://www.mapbox.com/blog/new-mapbox-logo/). ([#8771](https://github.com/mapbox/mapbox-gl-native/pull/8771), [#8773](https://github.com/mapbox/mapbox-gl-native/pull/8773))
 * Fixed an issue causing attribution button text to appear blue instead of black. ([#8701](https://github.com/mapbox/mapbox-gl-native/pull/8701))
 * Fixed a crash or console spew when MGLMapView is initialized with a frame smaller than 64 points wide by 64 points tall. ([#8562](https://github.com/mapbox/mapbox-gl-native/pull/8562))