Span order problem after clicking Preview

[Pingfah]

Hi, I am having a small problem with font sizing in the wysiwg editor.

If I select my text and make the font size bigger and then preview it, when I return to the editor window it has inserted the span at the bottom of the editor. If I then reselect the same text and try to reduce the font size it inserts a new span before the original one, so the original one remains the last piece of code that is read and the font does not change size any more. I am having this problem on my own site, but I am also having it on the demo as well.

I am having the same problem in IE8 and Firefox. My OS is windows XP SP3.

If you don't hit preview you can resize to your heart's content, but as soon as you hit preview it all goes wrong.

[Pingfah]

Oh, I have discovered that I have to hit undo on the change I made before I pressed preview, then the text goes back to how it should be and I can resize properly.