[firebase_auth] fetchSignInMethodsForEmail returns null on iOS, empty array on Android

packages/firebase_auth/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.14.0+3
+
+* Handle incorrect response from native iOS SDK. 
+
 ## 0.14.0+2
 
 * Reduce compiler warnings on iOS port by replacing `int` with `long` backing in returned timestamps.

packages/firebase_auth/lib/src/firebase_auth.dart

@@ -117,9 +117,10 @@ class FirebaseAuth {
   }) async {
     assert(email != null);
     return await channel.invokeListMethod<String>(
-      'fetchSignInMethodsForEmail',
-      <String, String>{'email': email, 'app': app.name},
-    );
+          'fetchSignInMethodsForEmail',
+          <String, String>{'email': email, 'app': app.name},
+        ) ??
+        <List<String>>[];
   }
 
   /// Triggers the Firebase Authentication backend to send a password-reset

packages/firebase_auth/pubspec.yaml

@@ -4,7 +4,7 @@ description: Flutter plugin for Firebase Auth, enabling Android and iOS
   like Google, Facebook and Twitter.
 author: Flutter Team <[email protected]>
 homepage: https://github.com/flutter/plugins/tree/master/packages/firebase_auth
-version: 0.14.0+2
+version: 0.14.0+3
 
 flutter:
   plugin: