[ios] Don't force the attribution button tint color to update

platform/ios/CHANGELOG.md

@@ -5,6 +5,7 @@ Mapbox welcomes participation and contributions from everyone. Please read [CONT
 ## 3.6.1
 
 * Reduced the size of the dynamic framework by optimizing symbol visibility. ([#7604](https://github.com/mapbox/mapbox-gl-native/pull/7604))
+* Fixed an issue where the attribution button would have its custom tint color reset when the map view received a tint color change notification, such as when an alert controller was presented. ([#9598](https://github.com/mapbox/mapbox-gl-native/pull/9598))
 
 ## 3.6.0 - June 29, 2017
 

platform/ios/src/MGLMapView.mm

@@ -1144,8 +1144,10 @@ - (void)tintColorDidChange
 
 - (void)updateTintColorForView:(UIView *)view
 {
-    // stop at recursing container & annotation views (#8522)
-    if ([view isEqual:self.annotationContainerView]) return;
+    // Don't update:
+    //   - annotation views
+    //   - attribution button (handled automatically)
+    if ([view isEqual:self.annotationContainerView] || [view isEqual:self.attributionButton]) return;
 
     if ([view respondsToSelector:@selector(setTintColor:)]) view.tintColor = self.tintColor;