[jQuery] Sortable: zIndex conectWith IE7 - Sortable stays behind seond sortable li's in IE7(possibly others)

[jQuery] Sortable: zIndex conectWith IE7 - Sortable stays behind seond sortable li's in IE7(possibly others)


Hi there. I did a search for zIndex IE7 but didn't seem to find this
issue in particular.
Example: http://jsbin.com/ilira
When a "li" is dragged from "ul.options" to "ul.rank" the "li" goes
behind the rank "li"s in IE7 (and possibly other IE's I never
checked).
Why?
How can I fix this?