Don't return nil params on error

Author: aaustin

Branch-SDK/Branch-SDK/Branch.m

@@ -1470,10 +1470,10 @@ - (void)handleInitFailure:(NSError *)error {
 
     if (self.shouldCallSessionInitCallback) {
         if (self.sessionInitWithParamsCallback) {
-            self.sessionInitWithParamsCallback(nil, error);
+            self.sessionInitWithParamsCallback([[NSDictionary alloc] init], error);
         }
         else if (self.sessionInitWithBranchUniversalObjectCallback) {
-            self.sessionInitWithBranchUniversalObjectCallback(nil, nil, error);
+            self.sessionInitWithBranchUniversalObjectCallback([[BranchUniversalObject alloc] init], [[BranchLinkProperties alloc] init], error);
         }
     }
 }