[IE11] Highlight Shift with Japanese IME when converting to Kanji on CKEditor

[Satya Minnekanti]

This is customer reported issues & high priority for IBM

Steps to reproduce

* install Japanese IME first

1. Open ckeditor demo page ​http://ckeditor.com/demo#full

2. Input two lines of sample text, e.g.

(line 1) watasinonamaehanakanodesu (line 2) watasinonamaehanakanodesu

3. Go to end of first line, type <Enter> key to go to new line

4. Turn on IME (select Hiragana)

5. Type "watasinonamaehanakanodesu" and press <space bar> to trigger converting the input texts to clauses

6. Press <right> arrow key

7. Press <right> arrow key again

8. Blue highlight "area" and "underline" will shuffle around as we key in <left> or <right> arrow keys.

Pls see attached screenshots for references

Expected result

After Step 5, The area should not be highlighted when user uses Left or Right arrow keys. It should only move the cursor

Actual result

After Step 5, Area is highlighted when user uses <left> or <right> arrow keys. It should only move the cursor.

[Jakub Ś]

Unfortuantely this is IE issue.

I have tried reproducing it in native iframe with contenteditable body and got the same result. Please see attached image.