[FF] Odd cursor position after deleting single bullet point

[ckeditor_user]

In Firefox 19, the cursor moves to the far right after deleting unordered list that contains a single list item.

Steps to reproduce:
1) Open Firefox
2) Load CKEditor with the following HTML source:

<p>A line of text</p>
<ul>
  <li>First bullet point</li>
</ul>

3) While CKEditor is in WYSIWYG mode, select "First bullet point" as in the first screenshot.
4) Press delete or backspace on the keyboard.
5) The cursor ends up on the same line as the remaining paragraph, but oddly at the far right of the editing area (second screenshot, circled in red).

This was discovered on Windows 7 64-bit using CKEditor 4.0.2. I was not able to reproduce the behavior in IE9 or Chrome25.

[ckeditor_user]

Step 3 - list item text selected

[ckeditor_user]

Step 5 - cursor ends up at far right

[Jakub Ś]

Problem can be reproduced from CKEditor 4.0 in Firefox only.

[Jakub Ś]

#10965 was marked as duplicate.

TC from that ticket (the same thing for links happens also for lists)
To Reproduce:

1. Use ajax sample
2. Type in a word, e.g. test, select it by using Ctrl + A
3. Insert a link
4. Press the right arrow key

Problem: Cursor moves to the very right of the line

5. Continue typing

I believe this may have something to do with BR tag included in LI or A elements and how editor handles it. It was working fine till CKEditor 4.0 beta

[Jakub Ś]

There is very similar issue: #10847. I believe they both duplicate each other and can be fixed with one patch.