Replace feature leaves selection after cancel

[Damian]

The replace feature causes the selection to be saved in the document.
To reproduce:

1. Open Ajax sample and add some text.
   
2. Use Replace feature to find a known word and replace with another.
   
3. Cancel from the dialog, ensuring the selection is still on the last replaced word.
   
4. Remove the editor.
   

Results in the selection being saved with the document. E.g.:

<span style="color: rgb(255,255,255); background-color: rgb(0,0,68)">Test</span>

[Garry Yao]

The expected behavior is selecting the replaced text, but without the highlight.

[Garry Yao]

Regression of [3530].

[Garry Yao]

Fixed with [3564].