Issue/fix 601 location always permission bug (#629)

* Fixed bug where locationAlways sometimes returned either PermissionStatus.Granted or Denied

* Fix bug where `locationAlways` returned sometimes `PermissionStatus.Denied` instead of `PermissionStatus.Granted`.

* Update permission_handler/CHANGELOG.md

Co-authored-by: Maurits van Beusekom <maurits@vnbskm.nl>

Co-authored-by: Maurits van Beusekom <maurits@vnbskm.nl>

permission_handler/CHANGELOG.md

+## 8.1.4
+
+* Fix bug where requesting `locationAlways` permission sometimes returns `PermissionStatus.Denied` instead of `PermissionStatus.Granted`.
+
 ## 8.1.3
 
 * Fix bug where `locationAlways` returns `PermanentlyDenied`;

permission_handler/ios/Classes/PermissionManager.m

@@ -46,7 +46,7 @@
         int rawValue = rawNumberValue.intValue;
         PermissionGroup permission = (PermissionGroup) rawValue;
         
-        id <PermissionStrategy> permissionStrategy = [PermissionManager createPermissionStrategy:permission];
+        __block id <PermissionStrategy> permissionStrategy = [PermissionManager createPermissionStrategy:permission];
         [_strategyInstances addObject:permissionStrategy];
         
         
@@ -55,6 +55,7 @@
             [requestQueue removeObject:@(permission)];
             
             [self->_strategyInstances removeObject:permissionStrategy];
+            permissionStrategy = nil;
             
             if (requestQueue.count == 0) {
                 completion(permissionStatusResult);

permission_handler/pubspec.yaml

 name: permission_handler
 description: Permission plugin for Flutter. This plugin provides a cross-platform (iOS, Android) API to request and check permissions.
-version: 8.1.3
+version: 8.1.4
 homepage: https://github.com/baseflowit/flutter-permission-handler
 
 flutter: