1 files changed, 9 insertions, 4 deletions

diff --git a/sources/core/dom/node.js b/sources/core/dom/node.js
index 5d791319..7818b079 100644
--- a/sources/core/dom/node.js
+++ b/sources/core/dom/node.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or http://ckeditor.com/license
  */
 
@@ -373,7 +373,7 @@ CKEDITOR.tools.extend( CKEDITOR.dom.node.prototype, {
                 // The idea is - all empty text nodes will be virtually merged into their adjacent text nodes.
                 // If an empty text node does not have an adjacent non-empty text node we can return -1 straight away,
                 // because it and all its sibling text nodes will be merged into an empty text node and then totally ignored.
-                if ( normalized && current.nodeType == CKEDITOR.NODE_TEXT && !current.nodeValue ) {
+                if ( normalized && current.nodeType == CKEDITOR.NODE_TEXT && isEmpty( current ) ) {
                         var adjacent = getAdjacentNonEmptyTextNode( current ) || getAdjacentNonEmptyTextNode( current, true );
 
                         if ( !adjacent )
@@ -382,7 +382,7 @@ CKEDITOR.tools.extend( CKEDITOR.dom.node.prototype, {
 
                 do {
                         // Bypass blank node and adjacent text nodes.
-                        if ( normalized && current != this.$ && current.nodeType == CKEDITOR.NODE_TEXT && ( isNormalizing || !current.nodeValue ) )
+                        if ( normalized && current != this.$ && current.nodeType == CKEDITOR.NODE_TEXT && ( isNormalizing || isEmpty( current ) ) )
                                 continue;
 
                         index++;
@@ -401,7 +401,12 @@ CKEDITOR.tools.extend( CKEDITOR.dom.node.prototype, {
 
                         // If found a non-empty text node, then return it.
                         // If not, then continue search.
-                        return sibling.nodeValue ? sibling : getAdjacentNonEmptyTextNode( sibling, lookForward );
+                        return isEmpty( sibling ) ? getAdjacentNonEmptyTextNode( sibling, lookForward ) : sibling;
+                }
+
+                // Checks whether a text node is empty or is FCSeq string (which will be totally removed when normalizing).
+                function isEmpty( textNode ) {
+                        return !textNode.nodeValue || textNode.nodeValue == CKEDITOR.dom.selection.FILLING_CHAR_SEQUENCE;
                 }
         },