Index: CKEditor/trunk/CHANGES.html
===================================================================
--- CKEditor/trunk/CHANGES.html	(revision 7371)
+++ CKEditor/trunk/CHANGES.html	(revision 7372)
@@ -52,4 +52,5 @@
 		<li><a href="http://dev.ckeditor.com/ticket/7955">#7955</a> : [FF] Fix "Page Up"/"Page Down" in wysiwyg mode cause selection lost.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/8698">#8698</a> : Fix "Esc" shortcut key to close color picker dialog.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/8413">#8413</a> : Fix HTML comment nodes breaking content styling in table.</li>
 	</ul>
 	<h3>
Index: CKEditor/trunk/_source/core/dom/comment.js
===================================================================
--- CKEditor/trunk/_source/core/dom/comment.js	(revision 7371)
+++ CKEditor/trunk/_source/core/dom/comment.js	(revision 7372)
@@ -9,17 +9,30 @@
  */
 
-CKEDITOR.dom.comment = CKEDITOR.tools.createClass(
+/**
+ * Represents a DOM comment node.
+ * @constructor
+ * @augments CKEDITOR.dom.node
+ * @param {Object|String} comment A native DOM comment node or a string containing
+ *		the text to use to create a new comment node.
+ * @param {CKEDITOR.dom.document} [ownerDocument] The document that will contain
+ *		the node in case of new node creation. Defaults to the current document.
+ * @example
+ * var nativeNode = document.createComment( 'Example' );
+ * var comment = CKEDITOR.dom.comment( nativeNode );
+ * @example
+ * var comment = CKEDITOR.dom.comment( 'Example' );
+ */
+CKEDITOR.dom.comment = function( comment, ownerDocument )
 {
-	base : CKEDITOR.dom.node,
+	if ( typeof comment == 'string' )
+		comment = ( ownerDocument ? ownerDocument.$ : document ).createComment( comment );
 
-	$ : function( text, ownerDocument )
-	{
-		if ( typeof text == 'string' )
-			text = ( ownerDocument ? ownerDocument.$ : document ).createComment( text );
+	CKEDITOR.dom.domObject.call( this, comment );
+};
 
-		this.base( text );
-	},
+CKEDITOR.dom.comment.prototype = new CKEDITOR.dom.node();
 
-	proto :
+CKEDITOR.tools.extend( CKEDITOR.dom.comment.prototype,
+	/** @lends CKEDITOR.dom.comment.prototype */
 	{
 		type : CKEDITOR.NODE_COMMENT,
@@ -29,4 +42,3 @@
 			return '<!--' + this.$.nodeValue + '-->';
 		}
-	}
-});
+	});
Index: CKEditor/trunk/_source/core/dom/node.js
===================================================================
--- CKEditor/trunk/_source/core/dom/node.js	(revision 7371)
+++ CKEditor/trunk/_source/core/dom/node.js	(revision 7372)
@@ -24,19 +24,11 @@
 	if ( domNode )
 	{
-		switch ( domNode.nodeType )
-		{
-			// Safari don't consider document as element node type. (#3389)
-			case CKEDITOR.NODE_DOCUMENT :
-				return new CKEDITOR.dom.document( domNode );
-
-			case CKEDITOR.NODE_ELEMENT :
-				return new CKEDITOR.dom.element( domNode );
-
-			case CKEDITOR.NODE_TEXT :
-				return new CKEDITOR.dom.text( domNode );
-		}
-
-		// Call the base constructor.
-		CKEDITOR.dom.domObject.call( this, domNode );
+		var constructor = domNode.nodeType == CKEDITOR.NODE_DOCUMENT ? 'document'
+			: domNode.nodeType == CKEDITOR.NODE_ELEMENT ? 'element'
+			: domNode.nodeType == CKEDITOR.NODE_TEXT ? 'text'
+			: domNode.nodeType == CKEDITOR.NODE_COMMENT ? 'comment'
+			: 'domObject';  // Call the base constructor otherwise.
+
+		return new CKEDITOR.dom[ constructor ]( domNode );
 	}
 
Index: CKEditor/trunk/_source/core/dom/range.js
===================================================================
--- CKEditor/trunk/_source/core/dom/range.js	(revision 7371)
+++ CKEditor/trunk/_source/core/dom/range.js	(revision 7372)
@@ -1015,5 +1015,10 @@
 							isWhiteSpace = false;
 
-							if ( sibling.type == CKEDITOR.NODE_TEXT )
+							if ( sibling.type == CKEDITOR.NODE_COMMENT )
+							{
+								sibling = sibling.getPrevious();
+								continue;
+							}
+							else if ( sibling.type == CKEDITOR.NODE_TEXT )
 							{
 								siblingText = sibling.getText();