2.0 RC1 - cannot enter script and style tags

I've only tested this on IE6.0 .. but if the html content contains script or style tags, the editor inserts some funky CDATA stuff and at a minimum breaks the code inside those tags, and at worst breaks the editor entirely.

It seems to come from this:

switch (sNodeName)
{
case "script":case "style":
oNode.appendChild(this.XML.createCDATASection(htmlNode.text));break;