Scayt undo conflict.

[jswiderski]

Reported here http://dev.ckeditor.com/ticket/11036.

Steps to reproduce:

1. Open www.ckeditor.com/demo in IE
2. Enable SCAYT
3. Write 3-4 paragraphs
4. Try to undo the text

Undo does not work properly and unable to undo all text inserted (undo just blocks).
Problem can be reproduced in IE8-10 from CKEditor 3.6.2.
Please also have a look at attached screen cast to that ticket.

Could you leave a comment if this is editor or scayt issue?

[WebSpellChecker]

The issue has been fixed in new version (v. 3) of SCAYT plugin for CKEditor.