Styles in bullited lists and numbered lists cause data loss when switching between modes (Or saving and re-editing) in IE

In IE edit this asset is IE http://dev.curriki.org/xwiki/bin/view/GWT/Editor?xpage=plain&page=Coll_jmarks.Bullittest&mode=edit

Select one of the bulleted or numbered lines and change the font. Then switch to WIKI edit mode. Text is missing on that line that was changed. Switch back and the style is lost. If you don't swatch to wiki mode, but save and then edit again, then that line is lost.

Does not seem to occure in FF.