[IE9-11] Double replace fire error in console

[Artur Delura]

1. Load editor with content

<h1>Apollo 11</h1>

2. Click "Replace" button in toolbar
3. Type "Artur 11" in "Replace with" field
4. Click "Replace all"
5. Click "Close" button in dialog
6. Select word "Artur" in header by double-click
7. Click "Replace" button in toolbar
8. Type some word in "Replace with"
9. Click "Replace" button
10. click "Close"

OR

1. Load editor with content

hello world world

2. Click "Replace" button in toolbar
3. Type space in field "Find what"
4. Click "Replace all"
5. Click "Close"

Actual result:

Error in console SCRIPT5022: DOM Exception: INDEX_SIZE_ERR (1) ckeditor.js, line 379 character 513

[Jakub Ś]

DUP of #11271.