jQuery data unavailable in onunmatch

[Venkat]

When onunmatch is fired, I need to be able to access the jquery data
of the element so I can do the necessary cleanup (like clearInterval,
etc). Currently, the data is empty in the onunmatch handler.

I have isolated the issue here:

https://gist.github.com/1337120

If you click on the "click" link, you can see that the data is
present. When you click "remove", you can see that the data is no
longer there.

[Venkat]

Update: looks like this has nothing to do with entwine. jQuery's
remove method erases any data. I need to use detach instead.