From 692d2967b50de4df5b11a52337f9f1c6fe6fbca0 Mon Sep 17 00:00:00 2001
From: Lucas Galfaso <lgalfaso@gmail.com>
Date: Sat, 13 Jun 2015 15:45:23 +0200
Subject: [PATCH] fix(input): Firefox validation trigger

Do not trigger Firefox validation on form initialization.
- Do not set a value to an <input> field if the field already has the same value

Closes #12102
---
 src/ng/directive/input.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ng/directive/input.js b/src/ng/directive/input.js
index c3294ed6547c..0dbb03207fe9 100644
--- a/src/ng/directive/input.js
+++ b/src/ng/directive/input.js
@@ -1125,7 +1125,11 @@ function baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {
   element.on('change', listener);
 
   ctrl.$render = function() {
-    element.val(ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue);
+    // Workaround for Firefox validation #12102.
+    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;
+    if (element.val() !== value) {
+      element.val(value);
+    }
   };
 }