Find feature cannot locate certain words while Match Whole Word is enabled

[ischerer]

Steps to Reproduce

1. In an editor window, enter "dad mom hot cold computer RADIO"
2. Click the "Find" button.
3. Check the box next to "Match whole word".
4. Type "computer" into the search box.
5. Click Find.

Expected Result
"computer" is highlighted in the editor window

Actual Result
A dialog appears with the following text: "The specified text was not found."

Note: This feature will work properly if the word is first found while "Match whole word" is not enabled.

[Jakub Ś]

Recent regression reproducible from CKEditor 3.6.3 rev. [7395]

[Garry Yao]

Fixed with [7554].