From c52090aee2e5ab23b3f37f16b72bc03b128fd603 Mon Sep 17 00:00:00 2001
From: Krunoslav Zaher <krunoslav.zaher@gmail.com>
Date: Fri, 10 Jun 2016 11:26:10 +0200
Subject: [PATCH] Patches the problem with <-> clearing the value on return.
 Correct solution is still unknown.

---
 RxExample/RxExample/Operators.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/RxExample/RxExample/Operators.swift b/RxExample/RxExample/Operators.swift
index df484c65..f70a2efc 100644
--- a/RxExample/RxExample/Operators.swift
+++ b/RxExample/RxExample/Operators.swift
@@ -51,7 +51,7 @@ func <-> (textInput: RxTextInput, variable: Variable<String>) -> Disposable {
 
             let nonMarkedTextValue = nonMarkedText(textInput)
 
-            if nonMarkedTextValue != variable.value {
+            if nonMarkedTextValue != nil && nonMarkedTextValue != variable.value {
                 variable.value = nonMarkedTextValue ?? ""
             }
         }, onCompleted:  {