Merge pull request #3835 from bbirman/scene-default

Add default scene for advanced auth URL

Author: bbirman

libs/SalesforceSDKCore/SalesforceSDKCore/Classes/UserAccount/SFUserAccountManager.m

@@ -1159,6 +1159,9 @@ - (void)setAccountPersister:(id<SFUserAccountPersister>) persister {
 - (BOOL)handleAdvancedAuthURL:(NSURL *)advancedAuthURL options:(NSDictionary *)options {
     BOOL result = NO;
     NSString *sceneId = options[kSFIDPSceneIdKey];
+    if (!sceneId) {
+        sceneId = [[SFSDKWindowManager sharedManager] defaultScene].session.persistentIdentifier;
+    }
     if (self.authSessions[sceneId]) {
         result = [self.authSessions[sceneId].oauthCoordinator handleAdvancedAuthenticationResponse:advancedAuthURL];
     }