Empty list literal display error

[snippsat]

You can look at this page for the discussion.

Unfortunately this editor does not support empty tag.
you can check in http://sdk.ckeditor.com/samples/bbcode.html that same issue will happen.

So we have not put more effort into fixing it,as our new Rin Editor is based on Ckeditor.
It's a problem that rarely comes up,and when it do we know what it is.
If you want look into the regex for it you are welcome do it,as long as it don't break anything else