IE adds empty paragraph after pasted paragraph(s)

[ms428]

Steps to simulate:

1. Prepare 2 paragraphs, e.g.:

   <p>
   	a</p>
   <p>
   	b</p>
   

2. Copy a paragraph (or more paragraphs) from some site into the clipboard. Note that if copying just 1 paragraph, the copied HTML must include <p> and </p> tags. If in doubt, use e.g. ​this, triple click on a paragraph and copy.
3. Put the cursor at the end of the 1st paragraph in the editor.
4. Do the paste.

Expected result:

Only the copied text should be added to the document.

Actual result:

The copied text is added to the document and is followed by another (empty) paragraph. When switched to the source code, the additional paragraph contains &nbsp;.

Tested on:

Windows 7, 64-bit, IE9

Additional notes:

• bug happens only when pasting to the end of a paragraph (this includes pasting into empty paragraphs) and it doesn't happen when pasting to the end of the document
• other browsers (FF, Chrome, Opera) don't add the empty paragraph when pasting

[Jakub Ś]

Has happened for IE9 and IE8 from CKEditor version 3.1