Pressing tab when writing a question makes IE8 freeze (to death)

Question

I am experiencing a bug where, when I'm writing an answer and accidently press the TAB key, IE freezes, and I need to kill it entirely. It is frustrating because I lose whatever I've written. Has anyone else experienced this?

UPDATE

I have now found a method to reproduce. The error does not occur in the exact same place every time, but it will crash the IE eventually.

Start writing an answer with the following content (not including the lines):

---

asd asd asd asd asd asd asd asd asd

asd asd asd

---

Now, press tab. The little "an error ocurred on the page" IE javascript icon will appear in the lower left corner.

Now mark everything in the textbox with the mouse, and delete it.

Start typing from scratch:

---

asd asd asd asd asd asd asd asd asd

---

Added this since @Rejoice reported inability to reproduce Now press tab again, and (if you can, sometimes it already freezes before this) go back and keep typing.

At some point, and always when pressing space, the page will freeze completely.

Answer 1

Not an answer but I don't have the rep to edit the question, here are some details regarding the script error that always occurs when the tab key is pressed during answer editing.

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E; InfoPath.2) Timestamp: Sat, 18 Dec 2010 15:09:14 UTC

Message: Could not set the text property. Unexpected call to method or property access. Line: 1 Char: 26035 Code: 0 URI: http://sstatic.net/Js/wmd.js?v=438bf97578da

Here is my re-hydration of the function the above refers to from the wmd.js file:-

this.setInputAreaSelectionStartEnd= function ()
{
    if (p.selectionStart || p.selectionStart === 0)
    {
        q.start = p.selectionStart;
        q.end = p.selectionEnd
    }
    else
    {
        if (d.selection)
        {
            q.text = h.fixEolChars(p.value);
            var s;
            if (k.ieRetardedClick && k.ieCachedRange)
            {
                s = k.ieCachedRange;
                k.ieRetardedClick = false
            }       
            else
            {
                s = d.selection.createRange()
            }
            var r = h.fixEolChars(s.text);
            var u = "\x07";
            var v = u+r+u;

            s.text = v;  // Error happens here

            var w = h.fixEolChars(p.value);
            s.moveStart("character",-v.length);
            s.text = r;
            q.start = w.indexOf(u);
            q.end = w.lastIndexOf(u) - u.length;
            var t = q.text.length - h.fixEolChars(p.value).length;
           if (t)
           {
                s.moveStart("character", -r.length);
                while(t--)
                {
                    r += "\n";
                    q.end += 1
                }
                s.text = r
             }
             this.setInputAreaSelection()
         }
    }
}

Answer 2

This answer was composed in IE8. I am now pressing tab.

Nothing bad happened, but the Post Your Answer button does have some extraneous bullets in it now..