From edfd8a16038bf8583eaa12ed7eae821e4216dd4b Mon Sep 17 00:00:00 2001
From: benweet <benoit.schweblin@gmail.com>
Date: Mon, 15 Dec 2014 21:49:51 +0000
Subject: [PATCH] Fixed browser built-in undo issue

---
 public/res/editor.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/public/res/editor.js b/public/res/editor.js
index aff2d2c33..5b54e28e5 100644
--- a/public/res/editor.js
+++ b/public/res/editor.js
@@ -1073,8 +1073,10 @@ define([
 			else {
 				// Remove outdated sections
 				sectionsToRemove.forEach(function(section) {
-					// section can be already removed
+					// section may be already removed
 					section.elt.parentNode === contentElt && contentElt.removeChild(section.elt);
+					// To detect sections that come back with built-in undo
+					section.elt.generated = false;
 				});
 
 				if(insertBeforeSection !== undefined) {