Remove constraints instead of deactivating them

Avoid piling up lots of deactivated constraints. Also avoid trying to deactivate constraints that have already been removed from the view hierarchy due to a change in view controllers.

Fixes #2020.

1 files changed, 1 insertions, 0 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a5af40c9b..83363595dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,7 @@ Known issues:
 - Fixed a rendering issue that caused one-way arrows along tile boundaries to point due east instead of in the direction of travel. ([#2530](https://github.com/mapbox/mapbox-gl-native/pull/2530))
 - Fixed an issue that prevented zoom level–dependent style properties from updating after zooming programmatically with animation. ([#2951](https://github.com/mapbox/mapbox-gl-native/pull/2951))
 - Fixed a rendering issue with styles that use the `background-pattern` property. ([#2531](https://github.com/mapbox/mapbox-gl-native/pull/2531))
+- Fixed a crash when reusing a single `MGLMapView` across multiple `UIViewController`s. ([#2969](https://github.com/mapbox/mapbox-gl-native/pull/2969))
 - Labels can now line wrap on hyphens and other punctuation. ([#2598](https://github.com/mapbox/mapbox-gl-native/pull/2598))
 - A new delegate callback was added for observing taps to annotation callout views. ([#2596](https://github.com/mapbox/mapbox-gl-native/pull/2596))
 - `-mapViewRegionIsChanging:` is now sent to the map view’s delegate during gestures. ([#2700](https://github.com/mapbox/mapbox-gl-native/pull/2700))